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CORRELATION Definition & Meaning - Merriam-Webster Est. 1828 Dictionary Definition Definition Example Sentences Word History Phrases Containing Rhymes Entries Near Cite this Entry Citation Kids Definition Kids More from M-W Show more Show more Citation Kids More from M-W Save Word To save this word, you'll need to log in. Log In correlation noun cor·​re·​la·​tion ˌkȯr-ə-ˈlā-shən ˌkär- Synonyms of correlation Take our 3 question quiz on correlation Simple Definition A Simple Definition is available from our Learner's Dictionary to help you understand the meaning faster. 1 : the state or relation of being correlated specifically : a relation existing between phenomena or things or between mathematical or statistical variables which tend to vary, be associated, or occur together in a way not expected on the basis of chance alone … the obviously high positive correlation between scholastic aptitude and college entrance … — J. B. Conant Take our 3 question quiz on correlation 2 : the act of correlating correlational ˌkȯr-ə-ˈlā-sh(ə-)nəl ˌkär- adjective Examples of correlation in a Sentence the correlation of brain size and intelligence Researchers have found a direct correlation between smoking and lung cancer. She says that there's no correlation between being thin and being happy. 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 . The authors took a deceptively simple approach, examining the correlation between racial diversity in a school’s cohort and graduates’ starting salaries. — ArsTechnica , 29 Apr. 2026 While there is clearly a correlation , or a connection, between salary and collective bargaining, there is not enough fine-grain data to draw a direct, causal link between the two. — Cory Turner, NPR , 27 Apr. 2026 There’s a direct correlation between a president’s approval rating and the way his party performs at the midpoint of his term. — Los Angeles Times , 26 Apr. 2026 This is noted in the movie, with Lecter saying Bill isn't trans and Clarice pointing out there's no correlation between trans people and violence. — Brendan Morrow, USA Today , 25 Apr. 2026 See All Example Sentences for correlation Word History Etymology Medieval Latin correlation-, correlatio , from Latin com- + relation-, relatio relation First Known Use 1561, in the meaning defined at sense 1 Time Traveler The first known use of correlation was in 1561 See more words from the same year Phrases Containing correlation coefficient of correlation correlation coefficient rank correlation Rhymes for correlation abdication aberration abjuration abnegation abrogation acceptation acclamation acclimation accusation activation actuation acylation See All Rhymes for correlation Browse Nearby Words correlate correlation correlational See all Nearby Words Cite this Entry Style MLA Chicago APA Merriam-Webster “Correlation.” Merriam-Webster.com Dictionary , Merriam-Webster, https://www.merriam-webster.com/dictionary/correlation. Accessed 6 May. 2026. Copy Citation Kids Definition correlation noun cor·​re·​la·​tion ˌkȯr-ə-ˈlā-shən ˌkär- 1 : the act or process of correlating 2 : the state of being correlated especially : a mutual relation discovered to exist between things the correlation between smoking and lung cancer correlational -shnəl -shən-ᵊl adjective More from Merriam-Webster on correlation Thesaurus: All synonyms and antonyms for correlation Nglish: Translation of correlation for Spanish Speakers Last Updated: 30 Apr 2026 - Updated example sentences Love words? Need even more definitions? Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free! Merriam-Webster unabridged More from Merriam-Webster Word of the Day flamboyant See Definitions and Examples » Get Word of the Day daily email! Popular in Grammar & Usage See More More Commonly Mispronounced Words Regarding the Incorrect Use of 'Decimate' 5 Verbal Slip Ups and Language Mistakes Is that lie 'bald-faced' or 'bold-faced'? The Difference Between 'i.e.' and 'e.g.' See More Popular in Wordplay See More The Longest Long Words List Where does 'curiosity killed the cat' come from? 9 Other Words for Beautiful Was 'nervous Nellie' a Real Person? 12 Lovely and Unusual Words for the Natural World See More Popular See More More Commonly Mispronounced Words The Longest Long Words List Where does 'curiosity killed the cat' come from? See More Games & Quizzes See All Quordle Can you solve 4 words at once? Play Blossom Pick the best words! Play The Missing Letter A daily crossword with a twist Play Name That Tree! A quiz that’s all bark, no bite. Take the quiz See All