Might vs. Must

Might vs. Must — Is There a Difference?

Difference Between Might and Must

Mightnoun

Great power or force, as of a nation or army.

Mustverb

To be obliged or required by morality, law, or custom

Citizens must register in order to vote.

Mightnoun

Physical strength

Push with all your might!.

Mustverb

To be compelled, as by a physical necessity or requirement

Plants must have oxygen in order to live.

Mightnoun

Power, strength, force or influence held by a person or group.

Mustverb

Used to express a command or admonition

You must not go there alone. You simply must be careful.

Mightnoun

(uncountable) Physical strength or force.

He pushed with all his might, but still it would not move.

Mustverb

To be determined to; have as a fixed resolve

If you must leave, do it quietly.

Mightnoun

(uncountable) The ability to do something.

Mustverb

Used to indicate inevitability or certainty

We all must die.

Mightadjective

(obsolete) Mighty; powerful.

Mustverb

Used to indicate logical probability or presumptive certainty

If the lights were on, they must have been at home.

Mightadjective

(obsolete) Possible.

Mustverb

To be required or obliged to go

"I must from hence" (Shakespeare).

Mightverb

(auxiliary) Used to indicate conditional or possible actions.

I might go to the party, but I haven't decided yet.

Mustnoun

Something that is absolutely required or indispensable

Promptness on the job is a must. Comfortable boots are a must when going on a hike.

Mightverb

(auxiliary) may Used to indicate permission in past tense.

He asked me if he might go to the party, but I haven't decided yet.

Mustnoun

The quality or condition of being stale or musty.

Mightverb

(auxiliary) may Used to indicate possibility in past tense.

I thought that I might go the next day.

Mustnoun

The unfermented or fermenting juice expressed from fruit, especially grapes.

Mightverb

Used to indicate a desired past action that was not done.

Hey man, you might have warned me about the thunderstorm

Mustnoun

Variant of musth.

Mightnoun

physical strength

Mustnoun

Musk.

Mustverb

To do with certainty; indicates that the speaker is certain that the subject will have executed the predicate.

If it has rained all day, it must be very wet outside.You picked one of two, and it wasn't the first: it must have been the second.

Mustverb

To do as a requirement; indicates that the sentence subject is required as an imperative or directive to execute the sentence predicate, with failure to do so resulting in a negative consequence.

You must arrive in class on time. — the requirement is an imperativeThis door handle must be rotated fully. — the requirement is a directiveArise, and go into the city, and it shall be told thee what thou must do. (Bible, Acts 9:6)

Mustverb

said about something that is very likely, probable, or certain to be true

The children must be asleep by now.

Mustverb

(transitive) To make musty.

Mustverb

(intransitive) To become musty.

Mustnoun

Something that is mandatory or required.

If you'll be out all day, a map is a must.

Mustnoun

The property of being stale or musty.

Mustnoun

Something that exhibits the property of being stale or musty.

Mustnoun

Fruit juice that will ferment or has fermented, usually grapes.

Mustnoun

A time during which male elephants exhibit increased levels of sexual activity and aggressiveness also spelled musth.

Mustnoun

An elephant in this sexual and aggressive state.

Mustnoun

a necessary or essential thing;

seat belts are an absolute must

Mustnoun

grape juice before or during fermentation

Mustnoun

the quality of smelling or tasting old or stale or mouldy

Mustadjective

highly recommended;

a book that is must reading