copula

noun
UK /ˈkɒpjʊlə/
US /ˈkɑːpjələ/

A copula is a linking word like 'is' that joins a subject to a word describing it.

In the sentence 'She is happy,' the word 'is' is a copula.


OTHER MEANINGS

2. In logic, a copula is a word that connects the subject and predicate of a proposition.

Logicians study how the copula 'is' functions in statements like 'All men are mortal.'

3. In biology, a copula is a connecting structure or part between two organisms or body parts.

The copula joins the two halves of the insect's wing.

4. In music, a copula is a short connecting passage between two sections of a piece.

The organist played a brief copula before the final hymn.