similarity

noun

sim·​i·​lar·​i·​ty ˌsi-mə-ˈler-ə-tē How to pronounce similarity (audio)
-ˈla-rə-
plural similarities
Synonyms of similaritynext
1
: the quality or state of being similar : resemblance
2
: 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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
But the similarities of the landscapes through which both the Curiosity and Perseverance rovers are traveling couldn't be more different. Eric Lagatta, USA Today, 30 Apr. 2026 These distros have some similarities to Ubuntu, but may not necessarily adopt the new AI features Canonical is rolling out. Stevie Bonifield, The Verge, 29 Apr. 2026 But the similarities stopped there. Literary Hub, 29 Apr. 2026 So Hendon collaborated with volcanologists Josef Dufek and Joshua Méndez Harper, who were regulars at the same local coffee house and had noted striking similarities between the science of coffee and plumes of volcanic ash, magma, and water. ArsTechnica, 28 Apr. 2026 See All Example Sentences for similarity

Word History

Etymology

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

Browse Nearby Words

Cite this Entry

“Similarity.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/similarity. Accessed 1 May. 2026.

Kids Definition

similarity

noun
sim·​i·​lar·​i·​ty ˌsim-ə-ˈlar-ət-ē How to pronounce similarity (audio)
plural similarities
1
: the quality or state of being similar : resemblance
2
: a point in which things are similar : correspondence

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