Identical vs. Similar: Know the Difference
By Shumaila Saeed || Updated on December 25, 2023
Identical means exactly the same in every detail, while similar refers to sharing qualities or characteristics without being exactly the same.
Key Differences
Identical is used to describe two or more entities that are exactly the same in every aspect. It implies complete sameness, without any variation. For example, identical twins have the same genetic makeup. Similar, however, denotes a likeness or resemblance, suggesting that while entities share certain characteristics, they are not exactly the same in every detail.
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Nov 21, 2023
In terms of usage, identical is a stronger term, often used in contexts where precision and exactitude are crucial, such as in scientific or technical fields. Identical components in machinery, for instance, are interchangeable. Similar, on the other hand, allows for some degree of variation and is often used in more subjective contexts, such as comparing art styles or literary themes.
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The concept of identity is central to identical; it implies a shared essence or identity between objects or individuals. Identical items are indistinguishable from each other. In contrast, similar suggests a comparative relationship, where the focus is on the common traits rather than an absolute shared identity.
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When using identical, there is an implicit understanding that no differences exist. This can be important in legal or formal documentation where precision is necessary. Similar is more flexible, allowing for a range of shared attributes but acknowledging the presence of differences.
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In everyday language, identical often emphasizes replication or duplication, like identical copies of a document. Similar, however, is used to describe general likeness, as when saying two paintings are similar in style, acknowledging their individual uniqueness.
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Comparison Chart
Usage Context
Requires precision (e.g., scientific, legal)
More subjective or general contexts
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Focus
On absolute sameness
On shared characteristics, acknowledging differences
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Flexibility
No room for variation
Allows for differences within shared traits
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Implication
Replication or duplication
Comparative relationship with uniqueness preserved
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Identical and Similar Definitions
Identical
Exactly the same in every detail.
The two cars were identical, down to the license plate numbers.
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Similar
Having a resemblance in appearance, character, or quantity.
The two paintings are similar in style but different in color.
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Identical
Being an exact duplicate or copy.
She bought two identical dresses in different colors.
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Similar
Nearly the same but not exactly.
The siblings have similar facial features but different personalities.
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Identical
Sharing the exact same qualities or characteristics.
The twins were identical and often mistaken for each other.
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Similar
Comparable in many respects, though not identical.
The climate in the two regions is similar, with mild winters and hot summers.
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Identical
Indistinguishable from each other.
The copied document was identical to the original.
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Similar
Sharing qualities or features with something else.
Their opinions on the topic were similar, though not exactly the same.
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Identical
Exactly alike, without any difference.
The two performances were identical in quality and execution.
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Similar
Showing likeness or resemblance, not identical.
The two software programs are similar in function but vary in interface.
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Identical
Being the same
Another orator who used the senator's identical words.
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Similar
Having a resemblance in appearance or nature; alike though not identical.
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Identical
Exactly equal and alike
Your car is identical to mine. Are the fingerprints at the crime scene identical with those of the accused?.
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Oct 19, 2023
Similar
(Mathematics) Having corresponding angles equal and corresponding line segments proportional. Used of geometric figures
Similar triangles.
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Identical
(Biology) Of or relating to a twin or twins developed from the same fertilized ovum and having the same genetic makeup and closely similar appearance; monozygotic.
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Similar
Having traits or characteristics in common; alike, comparable.
My new car is similar to my old one, except it has a bit more space in the back.
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Identical
(not comparable) Bearing full likeness by having precisely the same set of characteristics; indistinguishable.
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Similar
(mathematics) Of geometrical figures including triangles, squares, ellipses, arcs and more complex figures, having the same shape but possibly different size, rotational orientation, and position; in particular, having corresponding angles equal and corresponding line segments proportional; such that one can be had from the other using a sequence of rotations, translations and scalings.
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Identical
(not comparable) Not different or other; not another or others; not different as regards self; selfsame; numerically identical.
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Similar
Of two square matrices; being such that a conjugation sends one matrix to the other.
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Similar
That which is similar to, or resembles, something else, as in quality, form, etc.
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Similar
(homeopathy) A material that produces an effect that resembles the symptoms of a particular disease.
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Identical
Something which has exactly the same properties as something else.
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Similar
Nearly corresponding; resembling in many respects; somewhat like; having a general likeness.
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Identical
The same; the selfsame; the very same; not different; as, the identical person or thing.
I can not remember a thing that happened a year ago, without a conviction . . . that I, the same identical person who now remember that event, did then exist.
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Similar
That which is similar to, or resembles, something else, as in quality, form, etc.
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Identical
Uttering sameness or the same truth; expressing in the predicate what is given, or obviously implied, in the subject; tautological.
When you say body is solid, I say that you make an identical proposition, because it is impossible to have the idea of body without that of solidity.
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Similar
Marked by correspondence or resemblance;
Similar food at similar prices
Problems similar to mine
They wore similar coats
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Identical
Exactly alike; incapable of being perceived as different;
Rows of identical houses
Cars identical except for their license plates
They wore indistinguishable hats
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Similar
Having the same or similar characteristics;
All politicians are alike
They looked utterly alike
Friends are generaly alike in background and taste
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Identical
Being the exact same one; not any other:;
This is the identical room we stayed in before
The themes of his stories are one and the same
Saw the selfsame quotation in two newspapers
On this very spot
The very thing he said yesterday
The very man I want to see
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Similar
Resembling or similar; having the same or some of the same characteristics; often used in combination;
Suits of like design
A limited circle of like minds
Members of the cat family have like dispositions
As like as two peas in a pod
Doglike devotion
A dreamlike quality
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Identical
(of twins) derived from a single egg or ovum;
Identical twins are monovular
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Similar
Capable of replacing or changing places with something else;
Interchangeable parts
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Repeatedly Asked Queries
Can similar things be mistaken as identical?
Yes, if the resemblance is strong, but upon closer inspection, differences are noticeable.
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Can identical objects have any differences?
No, identical objects have no differences and are exactly the same in every detail.
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Is identical a more precise term than similar?
Yes, identical is used when precision and exactitude are necessary.
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Is identical used in legal contexts?
Yes, where exact duplication or replication is crucial.
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Can similar objects serve the same purpose?
Often, yes, especially if their functional aspects are similar.
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Can the term identical be subjective?
No, it's an objective term indicating complete sameness.
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Are similar items interchangeable?
Sometimes, but not always, as they aren’t exact copies.
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Are identical twins completely the same?
Genetically, yes, but they can have individual differences like fingerprints and personalities.
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Can two things be similar in one aspect but different in others?
Yes, similarity often pertains to specific shared traits, not everything.
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Is it correct to say two things are 'very identical'?
No, identical is absolute; something can't be more or less identical.
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Can two experiences be identical?
They can be described as such, but individual perceptions may differ.
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Can something be similar in appearance but different in function?
Yes, similarity can be limited to certain aspects like appearance.
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Does similar imply less precision?
Yes, it allows for a degree of variation and general likeness.
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Is identical often used in mathematics or geometry?
Yes, for figures or values that are exactly the same.
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Can animals of the same species be identical?
Rarely, except in cases like identical twins.
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Can two things become more similar over time?
Yes, as they develop or acquire more shared characteristics.
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Do identical things always function the same way?
Yes, because they are exactly the same in every detail.
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Nov 21, 2023
Do identical and similar have the same root language origin?
No, they come from different linguistic roots reflecting their distinct meanings.
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Nov 21, 2023
Are identical products always manufactured the same way?
Yes, identical products follow the exact same manufacturing process.
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Nov 21, 2023
Can similar be used to describe feelings or ideas?
Yes, when they share common elements but are not exactly the same.
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Nov 21, 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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