Laser vs. Light: Know the Difference
By Shumaila Saeed || Updated on December 25, 2023
Laser is a focused beam of light, coherent and monochromatic; Light is electromagnetic radiation visible to the human eye, diverse in wavelengths.
Key Differences
Laser produces a narrow, focused beam of light, highly directional and coherent. Light, in general, refers to the broad spectrum of electromagnetic radiation visible to humans.
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Nov 15, 2023
Laser light is monochromatic, meaning it consists of one color or wavelength. General light can encompass a range of colors and wavelengths across the visible spectrum.
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Nov 15, 2023
Lasers are used for precise tasks due to their focused and intense nature. In contrast, light is used for general illumination and can be diffused or direct.
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Nov 15, 2023
The creation of a laser involves stimulating electrons to emit photons uniformly. Light is naturally emitted by luminous objects like the sun and light bulbs.
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Nov 15, 2023
Lasers can be used in communication, medicine, and technology for their precision. Light serves a fundamental role in daily life, from vision to ecosystem functioning.
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Nov 15, 2023
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Comparison Chart
Definition
Coherent, focused beam
Broad spectrum of electromagnetic radiation
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Nov 15, 2023
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Laser and Light Definitions
Laser
Light amplified by stimulated emission of radiation.
The barcode scanner uses a laser to read product information.
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Nov 15, 2023
Light
The aspect of brightness that illuminates objects.
The artist captured the play of light and shadow in her painting.
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Nov 15, 2023
Laser
A source of high-intensity monochromatic light.
The laser show dazzled the audience with its bright, colorful beams.
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Nov 15, 2023
Light
A state of being well-lit or illuminated.
The stage was bathed in bright light during the performance.
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Nov 15, 2023
Laser
A device that emits light through optical amplification.
The laser cutter precisely sliced through the metal.
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Nov 15, 2023
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Light
Electromagnetic radiation that is visible, perceivable by the normal human eye as colors between red and violet, having frequencies between 400 terahertz and 790 terahertz and wavelengths between 750 nanometers and 380 nanometers. Also called visible light.
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Oct 19, 2023
Laser
Any of several devices that emit highly amplified and coherent radiation of one or more discrete wavelengths. One of the most common lasers makes use of atoms in a metastable energy state, which, as they decay to a lower energy level, stimulate others to decay, resulting in a cascade of emitted radiation.
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Oct 19, 2023
Light
The sensation of perceiving light; brightness
A sudden light that made me blink.
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Laser
(Sports)A ball or puck sent in a straight line at high speed
Shot a laser into the upper right corner of the goal.
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Oct 19, 2023
Light
A source of light, especially a lamp, a lantern, or an electric lighting fixture
Turn out the lights when you leave.
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Light
The illumination derived from a source of light
By the light of the moon.
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Light
The particular quantity or quality of such illumination
Moved the lamp closer to get better light.
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Light
The pathway or route of such illumination to a person
You're standing in his light.
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Light
A mechanical device that uses illumination as a signal or warning, especially a beacon or traffic signal.
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Laser
A device which produces an intense, usually narrow, monochromatic beam of coherent light; called also optical maser. It has various forms, and is used in various applications in science and technology. The beam is produced by boosting the majority of the electrons in specific radiation-absorbing atoms in a medium into a higher energy level, from which they are stimulated by their own emitted radiation to drop back synchronously to their lower energy level, and emit light which is in phase (coherent).
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Oct 19, 2023
Laser
An acronym for light amplification by stimulated emission of radiation; an optical device that produces an intense monochromatic beam of coherent light
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Light
(Architecture) One of two or more openings in a window divided by a mullion or mullions.
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Laser
A focused beam of light used in various applications.
Surgeons used a laser for delicate eye surgery.
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Nov 15, 2023
Light
Something that provides information or clarification
Research that produced little new light on the question.
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Oct 19, 2023
Laser
A tool in precision measurements and alignment.
Engineers used a laser level to ensure the structure was perfectly horizontal.
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Nov 15, 2023
Light
A state of awareness or understanding, especially as derived from a particular source
In the light of experience.
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Light
A way of looking at or considering a matter; an aspect
Saw the situation in a different light.
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Light
Lights One's individual opinions, choices, or standards
Acted according to their own lights.
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Light
A person who inspires or is adored by another
My daughter is the light of my life.
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Light
A prominent or distinguished person; a luminary
One of the leading lights of the theater.
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Light
Light In Quaker doctrine, the guiding spirit or divine presence in each person.
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Light
To provide, cover, or fill with light; illuminate
Fireworks lighting the sky.
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Light
To signal, direct, or guide with light
"You'd ... set the lamp in the dormer window to light him home through the storm" (Edith Nesbit).
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Light
To start to burn; be ignited or kindled
Green wood does not light easily.
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Light
To come upon by chance or accident. Used with on or upon
Lit on the perfect solution to the problem.
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Light
Characterized by or filled with light; bright
A room that is light when the shutters are open.
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Light
Of relatively little weight for its size or bulk
Balsa is a light wood.
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Light
Designed for ease and quickness of movement; having a structure that is slim and has little weight for its type or class
Light aircraft.
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Light
Requiring relatively little equipment and using relatively simple processes to produce consumer goods
Light industry.
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Light
Consuming or using relatively moderate amounts; abstemious
A light eater.
A light smoker.
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Light
Intended primarily as entertainment and lacking serious or weighty content
A light comedy.
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Light
Containing a relatively small amount of a potentially harmful ingredient, such as alcohol, fat, or sodium
Light beer.
Light mayonnaise.
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Light
Of, relating to, or being a syllable ending in a short vowel or a short vowel plus a consonant.
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Light
Of, relating to, or being a vowel or syllable pronounced with little or no stress.
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Light
Visible electromagnetic radiation. The human eye can typically detect radiation (light) in the wavelength range of about 400 to 750 nanometers. Nearby shorter and longer wavelength ranges, although not visible, are commonly called ultraviolet and infrared light.
As you can see, this spacious dining-room gets a lot of light in the mornings.
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Light
(figurative) Spiritual or mental illumination; enlightenment, useful information.
Can you throw any light on this problem?
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Light
A notable person within a specific field or discipline.
Picasso was one of the leading lights of the cubist movement.
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Light
(painting) The manner in which the light strikes a picture; that part of a picture which represents those objects upon which the light is supposed to fall; the more illuminated part of a landscape or other scene; opposed to shade.
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Oct 19, 2023
Light
A point of view, or aspect from which a concept, person or thing is regarded.
I'm really seeing you in a different light today.
Magoon's governorship in Cuba was viewed in a negative light by many Cuban historians for years thereafter.
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Oct 19, 2023
Light
A flame or something used to create fire.
Hey, buddy, you got a light?
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Light
A firework made by filling a case with a substance which burns brilliantly with a white or coloured flame.
A Bengal light
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Light
A window in architecture, carriage design, or motor car design: either the opening itself or the window pane of glass that fills it, if any.
This facade has eight south-facing lights.
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Light
The series of squares reserved for the answer to a crossword clue.
The average length of a light on a 15×15 grid is 7 or 8.
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Light
Open view; a visible state or condition; public observation; publicity.
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Light
A traffic light, or, by extension, an intersection controlled by one or more that will face a traveler who is receiving instructions.
To get to our house, turn right at the third light.
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Light
(transitive) To illuminate; to provide light for when it is dark.
I used my torch to light the way home through the woods in the night.
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Light
(intransitive) To become ignited; to take fire.
This soggy match will not light.
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Light
To attend or conduct with a light; to show the way to by means of a light.
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Light
To make (a bonus) available to be collected by hitting a target, and thus light up the feature light corresponding to that bonus to indicate its availability.
Light' the extra ball by amassing 500 million points in the wizard mode.
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Oct 19, 2023
Light
(nautical) To unload a ship, or to jettison material to make it lighter
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Light
To find by chance.
I lit upon a rare book in a second-hand bookseller's.
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Light
(archaic) To alight; to land or come down.
She fell out of the window but luckily lit on her feet.
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Light
Having light; bright; clear; not dark or obscure.
The room is light when the Sun shines through the window.
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Light
Pale or whitish in color; highly luminous and more or less deficient in chroma.
She had light skin.
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Light
Having little or relatively little actual weight; not cumbrous or unwieldy.
A light load ; a lighter backpack after having removed the books ; light weapons
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Light
Having little weight as compared with bulk; of little density or specific gravity.
Feathers and cork are light ; oil is lighter than water
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Light
Of short or insufficient weight; weighing less than the legal, standard, or proper amount; clipped or diminished.
To issue light coin
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Light
Lightly built; typically designed for speed or small loads.
A light aircraft ; a light tank
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Light
(military) Not heavily armed; armed with light weapons.
Light infantry; a troop of light horse
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Light
Riding high because of no cargo; by extension, pertaining to a ship which is light.
If a ship is light or partially loaded ; the light draft of a vessel, or its light displacement
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Light
Without any piece of equipment attached or attached only to a caboose.
The light locomotives ; a locomotive may be moved light
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Light
(cookery) Not heavy or soggy; spongy; well raised.
A light bread ; sponge cake is a light cake
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Light
Low in fat, calories, alcohol, salt, etc.
This light beer still gets you drunk if you have enough of it.
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Light
Slight, not forceful or intense; small in amount or intensity.
A light drizzle; a light rain was falling; a light snow set in
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Light
Gentle; having little force or momentum.
This artist clearly had a light, flowing touch.
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Light
Unimportant, trivial, having little value or significance.
I made some light comment, and we moved on.
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Light
Not encumbered; unembarrassed; clear of impediments; hence, active; nimble; swift.
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Light
(dated) Easily influenced by trifling considerations; unsteady; unsettled; volatile.
A light, vain person; a light mind
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Light
Indulging in, or inclined to, levity; lacking dignity or solemnity; frivolous; airy.
Ogden Nash was a writer of light verse.
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Light
Not quite sound or normal; somewhat impaired or deranged; dizzy; giddy.
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Light
That agent, force, or action in nature by the operation of which upon the organs of sight, objects are rendered visible or luminous.
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Light
That which furnishes, or is a source of, light, as the sun, a star, a candle, a lighthouse, etc.
Then he called for a light, and sprang in.
And God made two great lights; the greater light to rule the day, and the lesser light to rule the night.
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Light
The time during which the light of the sun is visible; day; especially, the dawn of day.
The murderer, rising with the light, killeth the poor and needy.
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Light
The brightness of the eye or eyes.
He seemed to find his way without his eyes;For out o'door he went without their helps,And, to the last, bended their light on me.
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Light
The medium through which light is admitted, as a window, or window pane; a skylight; in architecture, one of the compartments of a window made by a mullion or mullions.
There were windows in three rows, and light was against light in three ranks.
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Light
Open view; a visible state or condition; public observation; publicity.
The duke yet would have dark deeds darkly answered; he would never bring them to light.
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Light
The power of perception by vision.
My strength faileth me; as for the light of my eyes, it also is gone from me.
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Light
That which illumines or makes clear to the mind; mental or spiritual illumination; enlightenment; knowledge; information.
He shall never knowThat I had any light of this from thee.
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Light
Prosperity; happiness; joy; felicity.
Then shall thy light break forth as the morning, and thy health shall spring forth speedily.
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Light
The manner in which the light strikes upon a picture; that part of a picture which represents those objects upon which the light is supposed to fall; the more illuminated part of a landscape or other scene; - opposed to shade. Cf. Chiaroscuro.
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Oct 19, 2023
Light
Appearance due to the particular facts and circumstances presented to view; point of view; as, to state things fairly and put them in the right light.
Frequent consideration of a thing . . . shows it in its several lights and various ways of appearance.
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Light
One who is conspicuous or noteworthy; a model or example; as, the lights of the age or of antiquity.
Joan of Arc,A light of ancient France.
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Light
A firework made by filling a case with a substance which burns brilliantly with a white or colored flame; as, a Bengal light.
Lord, lift thou up the light of thy countenance upon us.
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Light
Having light; not dark or obscure; bright; clear; as, the apartment is light.
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Light
White or whitish; not intense or very marked; not of a deep shade; moderately colored; as, a light color; a light brown; a light complexion.
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Light
Having little, or comparatively little, weight; not tending to be the center of gravity with force; not heavy.
These weights did not exert their natural gravity, . . . insomuch that I could not guess which was light or heavy whilst I held them in my hand.
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Light
Not burdensome; easy to be lifted, borne, or carried by physical strength; as, a light burden, or load.
Ye shall find rest unto your souls. For my yoke is easy, and my burden is light.
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Light
Easy to be endured or performed; not severe; not difficult; as, a light affliction or task.
Light sufferings give us leisure to complain.
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Light
Easy to be digested; not oppressive to the stomach; as, light food; also, containing little nutriment.
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Light
Not heavily armed; armed with light weapons; as, light troops; a troop of light horse.
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Light
Not encumbered; unembarrassed; clear of impediments; hence, active; nimble; swift.
Unmarried men are best friends, best masters . . . but not always best subjects, for they are light to run away.
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Light
Not heavily burdened; not deeply laden; not sufficiently ballasted; as, the ship returned light.
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Light
Not copious or heavy; not dense; not inconsiderable; as, a light rain; a light snow; light vapors.
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Light
Not pressing heavily or hard upon; hence, having an easy, graceful manner; delicate; as, a light touch; a light style of execution.
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Light
Easy to admit influence; inconsiderate; easily influenced by trifling considerations; unsteady; unsettled; volatile; as, a light, vain person; a light mind.
There is no greater argument of a light and inconsiderate person than profanely to scoff at religion.
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Light
Indulging in, or inclined to, levity; wanting dignity or solemnity; trifling; gay; frivolous; airy; unsubstantial.
Seneca can not be too heavy, nor Plautus too light.
Specimens of New England humor laboriously light and lamentably mirthful.
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Light
Not quite sound or normal; somewhat impaired or deranged; dizzy; giddy.
Are his wits safe? Is he not light of brain ?
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Light
Easily bestowed; inconsiderately rendered.
To a fair semblance doth light faith annex.
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Light
Wanton; unchaste; as, a woman of light character.
A light wife doth make a heavy husband.
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Light
Not of the legal, standard, or usual weight; clipped; diminished; as, light coin.
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Light
To set fire to; to cause to burn; to set burning; to ignite; to kindle; as, to light a candle or lamp; to light the gas; - sometimes with up.
If a thousand candles be all lighted from one.
And the largest lamp is lit.
Absence might cure it, or a second mistressLight up another flame, and put out this.
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Light
To give light to; to illuminate; to fill with light; to spread over with light; - often with up.
Ah, hopeless, lasting flames! like those that burnTo light the dead.
One hundred years ago, to have lit this theater as brilliantly as it is now lighted would have cost, I suppose, fifty pounds.
The sun has set, and Vesper, to supplyHis absent beams, has lighted up the sky.
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Light
To attend or conduct with a light; to show the way to by means of a light.
His bishops lead him forth, and light him on.
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Light
To be illuminated; to receive light; to brighten; - with up; as, the room light up very well.
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Light
To lighten; to ease of a burden; to take off.
From his head the heavy burgonet did light.
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Light
To dismount; to descend, as from a horse or carriage; to alight; - with from, off, on, upon, at, in.
When she saw Isaac, she lighted off the camel.
Slowly rode across a withered heath,And lighted at a ruined inn.
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Light
To descend from flight, and rest, perch, or settle, as a bird or insect.
[The bee] lights on that, and this, and tasteth all.
On the tree tops a crested peacock lit.
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Light
To come down suddenly and forcibly; to fall; - with on or upon.
On me, me only, as the source and springOf all corruption, all the blame lights due.
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Light
To come by chance; to happen; - with on or upon; formerly with into.
The several degrees of vision, which the assistance of glasses (casually at first lit on) has taught us to conceive.
They shall light into atheistical company.
And here we lit on Aunt Elizabeth,And Lilia with the rest.
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Light
(physics) electromagnetic radiation that can produce a visual sensation;
The light was filtered through a soft glass window
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Light
Any device serving as a source of illumination;
He stopped the car and turned off the lights
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Light
A particular perspective or aspect of a situation;
Although he saw it in a different light, he still did not understand
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Light
The quality of being luminous; emitting or reflecting light;
Its luminosity is measured relative to that of our sun
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Light
A condition of spiritual awareness; divine illumination;
Follow God's light
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Light
The visual effect of illumination on objects or scenes as created in pictures;
He could paint the lightest light and the darkest dark
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Light
Mental understanding as an enlightening experience;
He finally saw the light
Can you shed light on this problem?
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Light
Having abundant light or illumination;
They played as long as it was light
As long as the lighting was good
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Light
A divine presence believed by Quakers to enlighten and guide the soul
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Light
A visual warning signal;
They saw the light of the beacon
There was a light at every corner
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Light
A device for lighting or igniting fuel or charges or fires;
Do you have a light?
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Light
Cause to start burning; subject to fire or great heat;
Great heat can ignite almost any dry matter
Light a cigarette
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Light
Fall to somebody by assignment or lot;
The task fell to me
It fell to me to notify the parents of the victims
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Light
Of comparatively little physical weight or density;
A light load
Magnesium is a light metal--having a specific gravity of 1.74 at 20 degrees C
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Light
(used of color) having a relatively small amount of coloring agent;
Light blue
Light colors such as pastels
A light-colored powder
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Light
Of the military or industry; using (or being) relatively small or light arms or equipment;
Light infantry
Light cavalry
Light industry
Light weapons
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Light
Not great in degree or quantity or number;
A light sentence
A light accent
Casualties were light
Light snow was falling
Light misty rain
Light smoke from the chimney
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Light
Psychologically light; especially free from sadness or troubles;
A light heart
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Light
Characterized by or emitting light;
A room that is light when the shutters are open
The inside of the house was airy and light
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Light
Used of vowels or syllables; pronounced with little or no stress;
A syllable that ends in a short vowel is a light syllable
A weak stress on the second syllable
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Light
Easily assimilated in the alimentary canal; not rich or heavily seasoned;
A light diet
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Light
(used of soil) loose and large-grained in consistency;
Light sandy soil
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Light
(of sound or color) free from anything that dulls or dims;
Efforts to obtain a clean bass in orchestral recordings
Clear laughter like a waterfall
Clear reds and blues
A light lilting voice like a silver bell
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Light
Moving easily and quickly; nimble;
The dancer was light and graceful
A lightsome buoyant step
Walked with a light tripping step
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Light
Demanding little effort; not burdensome;
Light housework
Light exercise
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Light
Of little intensity or power or force;
The light touch of her fingers
A light breeze
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Light
(physics, chemistry) not having atomic weight greater than average;
Light water is ordinary water
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Light
Weak and likely to lose consciousness;
Suddenly felt faint from the pain
Was sick and faint from hunger
Felt light in the head
A swooning fit
Light-headed with wine
Light-headed from lack of sleep
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Light
Very thin and insubstantial;
Thin paper
Flimsy voile
Light summer dresses
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Light
Marked by temperance in indulgence;
Abstemious meals
A light eater
A light smoker
Ate a light supper
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Light
Less than the correct or legal or full amount often deliberately so;
A light pound
A scant cup of sugar
Regularly gives short weight
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Light
Intended primarily as entertainment; not serious or profound;
Light verse
A light comedy
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Light
Designed for ease of movement or to carry little weight;
Light aircraft
A light truck
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Light
Having relatively few calories;
Diet cola
Light (or lite) beer
Lite (or light) mayonnaise
A low-cal diet
Shumaila Saeed
Oct 19, 2023
Light
(of sleep) easily disturbed;
In a light doze
A light sleeper
A restless wakeful night
Shumaila Saeed
Oct 19, 2023
Light
Casual and unrestrained in sexual behavior;
Her easy virtue
He was told to avoid loose (or light) women
Wanton behavior
Shumaila Saeed
Oct 19, 2023
Light
Electromagnetic radiation visible to the human eye.
The room filled with natural light in the morning.
Shumaila Saeed
Nov 15, 2023
Light
A source of illumination, such as a lamp or the sun.
She turned on the light to read her book.
Shumaila Saeed
Nov 15, 2023
Light
A means of conveying information or signals.
The traffic light turned red, signaling drivers to stop.
Shumaila Saeed
Nov 15, 2023
Repeatedly Asked Queries
What makes light essential for life?
Light is crucial for processes like photosynthesis and is necessary for vision.
Shumaila Saeed
Nov 15, 2023
Are lasers always visible to the human eye?
Not all lasers are visible; some operate in parts of the spectrum outside human vision.
Shumaila Saeed
Nov 15, 2023
Can lasers emit light in different colors?
Yes, lasers can emit light in various colors, but each laser is typically monochromatic.
Shumaila Saeed
Nov 15, 2023
How does light differ in nature from lasers?
Light, in general, encompasses a range of wavelengths and is not as focused as laser light.
Shumaila Saeed
Nov 15, 2023
Can lasers be used for communication?
Yes, lasers are used in various communication technologies, like fiber optics.
Shumaila Saeed
Nov 15, 2023
What is the primary characteristic of a laser?
A laser emits a highly focused and coherent beam of light.
Shumaila Saeed
Nov 15, 2023
Is artificial light the same as natural light?
Artificial light is man-made and can differ in spectrum and intensity from natural light.
Shumaila Saeed
Nov 15, 2023
How does light affect human health?
Natural light is essential for Vitamin D synthesis and regulates circadian rhythms.
Shumaila Saeed
Nov 15, 2023
Can lasers cut through materials?
High-power lasers can cut through various materials, used in manufacturing and surgery.
Shumaila Saeed
Nov 15, 2023
How does light influence plant growth?
Light is essential for photosynthesis, affecting plant growth and health.
Shumaila Saeed
Nov 15, 2023
How does light from the sun differ from laser light?
Sunlight is a broad spectrum light source, while laser light is highly focused and coherent.
Shumaila Saeed
Nov 15, 2023
Can laser light be scattered like regular light?
Laser light is more resistant to scattering due to its coherence.
Shumaila Saeed
Nov 15, 2023
Are laser pointers safe for everyday use?
Laser pointers are generally safe if used responsibly and within safety guidelines.
Shumaila Saeed
Nov 15, 2023
What are safety concerns with lasers?
Lasers can be harmful to eyes and skin, requiring protective measures during use.
Shumaila Saeed
Nov 15, 2023
What is the color temperature of light?
Color temperature refers to the hue of light sources, measured in Kelvin.
Shumaila Saeed
Nov 15, 2023
Can lasers be used in household items?
Lasers are used in many household items, like laser printers and DVD players.
Shumaila Saeed
Nov 15, 2023
What is the role of light in photography?
Light is essential in photography for exposing the image onto a sensor or film.
Shumaila Saeed
Nov 15, 2023
Are all lasers the same strength?
No, lasers vary in strength and intensity, designed for different uses.
Shumaila Saeed
Nov 15, 2023
How is light used in signaling?
Light is used in various signaling devices, like traffic lights and beacons.
Shumaila Saeed
Nov 15, 2023
Is the speed of light the same for all types of light?
Yes, the speed of light in a vacuum is constant for all types of light, including laser light.
Shumaila Saeed
Nov 15, 2023
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About Author
Written by
Shumaila SaeedShumaila Saeed, an expert content creator with 6 years of experience, specializes in distilling complex topics into easily digestible comparisons, shining a light on the nuances that both inform and educate readers with clarity and accuracy.
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