From Longman Dictionary of Contemporary Englishcopulacop‧u‧la /ˈkɒpjələ $ ˈkɑːp-/ noun [countable] technical SLGa type of verb that connects the subject of a sentence to its complement, for example ‘seem’ in the sentence ‘The house seems big’ SYN linking verb
Examples from the Corpus
copula• Here are three of the most noticeable grammatical traits: Omission of the copula is: You out the game.Origin copula (1600-1700) Latin “something that joins” 