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.
Students also did research on various candidates and prepared their own voter guides, which featured key issues, platforms and points of similarity and contrast. Froylan Jimenez, Chicago Tribune, 15 Apr. 2026 They were included to demonstrate the similarities between cases and the terror that victims were forced to endure. Amanda Lee Myers, USA Today, 15 Apr. 2026 Three days after elbow stiffness forced him from the game, Pivetta did not push back on the potential similarities. Jeff Sanders, San Diego Union-Tribune, 15 Apr. 2026 Coleman and his similarities to Frank Gore would be the favorite to back up Henry and step in as a Top 20 option if Henry gets hurt. Jake Ciely, New York Times, 15 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

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Cite this Entry

“Similarity.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/similarity. Accessed 24 Apr. 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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