# copula

> English word · Noun · IPA /ˈkɒpjʊlə/ · frequency rank #68,956

## Definitions
1. A word, usually a verb, used to link the subject of a sentence with a predicate (usually a subject complement or an adverbial), that unites or associates the subject with the predicate.
2. The bond or relationship by which two things are combined into a unity.
3. A function that represents the association between two or more variables, independent of the individual marginal distributions of the variables.
4. A device that connects two or more keyboards of an organ.
5. The act of copulation; mating.

## Etymology
Borrowed from Latin cōpula (“connection, linking of words”), from co- (“together”) + apere (“fasten”). Doublet of couple.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/copula