sim·​i·​lar·​i·​ty | \ ˌsi-mə-ˈler-ə-tē How to pronounce similarity (audio) , -ˈla-rə-\
plural similarities

Definition of similarity

1 : the quality or state of being similar : resemblance
2 : a comparable aspect : correspondence

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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.
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Recent Examples on the Web

In the early ’70s, people noticed a few similarities between the two. Quanta Magazine, "Are We All Wrong About Black Holes?," 10 Sep. 2019 In the early ’70s, people noticed a few similarities between the two. Wired, "Are We All Wrong About Black Holes?," 8 Sep. 2019 While an investigation by the CDC has found similarities in the cases, a single product or substance has not been identified as a cause. Jessica Seaman, The Denver Post, "As death toll increases nationwide, parents confirm Colorado college student was hospitalized with vaping-related illness," 6 Sep. 2019 But video ‘raises concerns,’ chief says.] A call from 2016 revealed Bowen’s name and birthday, and investigators observed similarities between photos of him and a police sketch made from victim descriptions. Michael Brice-saddler, Washington Post, "Police spent years looking for a serial rapist. Now they say the suspect once tried to join the force.," 3 Sep. 2019 After obtaining his name and birthdate from a 2016 call, investigators found similarities between Bowen's photo and police sketches from descriptions given by rape victims, Reimers said. Fox News, "Georgia man charged as serial rapist was recruit for police department that arrested him," 29 Aug. 2019 And when John Harbaugh saw him at a rookie minicamp in May, the Baltimore Ravens coach noticed the similarities immediately. Tom Schad, USA TODAY, "Like father, like son? Ravens WR Joe Horn Jr. trying to catch on in NFL," 28 Aug. 2019 And Schwartz knows fans will find similarities between Looking for Alaska and The O.C., specifically in the main relationship between Alaska (Kristine Froseth) and Miles (Charlie Plummer). Sydney Bucksbaum,, "How Looking for Alaska helped Josh Schwartz revisit The O.C.," 26 July 2019 Trump was not the only one to notice some similarities between the two world leaders, like their penchant for outrageous remarks and checkered personal lives. David Kaiser, Time, "Donald Trump and Boris Johnson Rode the Same Wave Into Power. History Suggests the Parallels Won’t Stop There," 26 July 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'similarity.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of similarity

1664, in the meaning defined at sense 1

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Dictionary Entries near similarity





similarly placed



Statistics for similarity

Last Updated

19 Sep 2019

Look-up Popularity

Time Traveler for similarity

The first known use of similarity was in 1664

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More Definitions for similarity



English Language Learners Definition of similarity

: a quality that makes one person or thing like another


sim·​i·​lar·​i·​ty | \ ˌsi-mə-ˈler-ə-tē How to pronounce similarity (audio) \
plural similarities

Kids Definition of similarity

: the quality or state of being alike in some way or ways There is a similarity in looks between the children.

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Comments on similarity

What made you want to look up similarity? Please tell us where you read or heard it (including the quote, if possible).


miscellaneous remnants or debris

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The Exceptions Quiz III

  • one green toy robot amidst many red toy robots
  • Which of these words does not mean "nonsense"?
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