sim·​i·​lar·​i·​ty ˌsi-mə-ˈler-ə-tē How to pronounce similarity (audio)
plural similarities
: the quality or state of being similar : resemblance
: a comparable aspect : correspondence
Choose the Right Synonym for similarity

likeness, similarity, resemblance, similitude, analogy mean agreement or correspondence in details.

likeness implies a closer correspondence than similarity which often implies that things are merely somewhat alike.

a remarkable likeness to his late father
some similarity between the two cases

resemblance implies similarity chiefly in appearance or external qualities.

statements that bear little resemblance to the truth

similitude applies chiefly to correspondence between abstractions.

two schools of social thought showing points of similitude

analogy implies likeness or parallelism in relations rather than in appearance or qualities.

pointed out analogies to past wars

Examples of similarity in a Sentence

I doubt that these words are related beyond a similarity in sound. The books share a similarity of ideas. I see a lot of similarities in them. Looking at these fossils, I see some similarity to modern-day birds. I see very little similarity between your situation and his.
Recent Examples on the Web As some important concepts about the mechanics of this alternate future are introduced, however, the similarities begin to seem minor. Carlos Aguilar, Variety, 3 May 2024 And sharing similarities to the hardest working woman in the music business, Mona Kattan knows exactly what the girlies like. Kimberly Wilson, Essence, 3 May 2024 See all Example Sentences for similarity 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'similarity.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History


borrowed from New Latin similāritāt-, similāritās, from Medieval Latin similāris similar + Latin -itāt-, -itās -ity

First Known Use

1615, in the meaning defined at sense 1

Time Traveler
The first known use of similarity was in 1615

Dictionary Entries Near similarity

Cite this Entry

“Similarity.” Dictionary, Merriam-Webster, Accessed 18 May. 2024.

Kids Definition


sim·​i·​lar·​i·​ty ˌsim-ə-ˈlar-ət-ē How to pronounce similarity (audio)
plural similarities
: the quality or state of being similar : resemblance
: a point in which things are similar : correspondence

More from Merriam-Webster on similarity

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