correlation
noun
cor·re·la·tion
ˌkȯr-ə-ˈlā-shən 
ˌkär-
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 … —
James B. Conant
James B. Conant 2
: the act of correlating
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
Because John Herschel believed that the correlation between magnetic storms and auroras revealed both to be meteorological phenomena, the new observatories would be equipped with weather instruments that, in time, would permit the first global measurements of climate change.
—Literary Hub, 27 Oct. 2025
This pre-2018 correlation tracks steadily downward as unemployment rises, with an 8% unemployment rate resulting in a -4% change to the deficit.
—Eleanor Pringle, Fortune, 27 Oct. 2025
Statistical correlations were used to explore how specific gut microbes related to chemical changes in the brain.
—New Atlas, 26 Oct. 2025
More generally, Europeans' personal happiness levels have seemingly gravitated away from church and children, the traditional sources of meaning, and toward a discomfiting positive correlation with the size of a nation's welfare state.
—MSNBC Newsweek, 24 Oct. 2025
See All Example Sentences for correlation
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Literary Hub, 27 Oct. 2025
This pre-2018 correlation tracks steadily downward as unemployment rises, with an 8% unemployment rate resulting in a -4% change to the deficit.
—Eleanor Pringle, Fortune, 27 Oct. 2025
Statistical correlations were used to explore how specific gut microbes related to chemical changes in the brain.
—New Atlas, 26 Oct. 2025
More generally, Europeans' personal happiness levels have seemingly gravitated away from church and children, the traditional sources of meaning, and toward a discomfiting positive correlation with the size of a nation's welfare state.
—MSNBC Newsweek, 24 Oct. 2025
See All Example Sentences for correlation
Cite this Entry
“Correlation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/correlation. Accessed 5 Nov. 2025.
Copy CitationKids 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
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