cop ‧ u ‧ la /ˈkɒpjələ, ˈkɒpjʊlə $ ˈkɑːp-/ BrE AmE noun [countable] technical
[ Date: 1600-1700 ; Language: Latin ; Origin: 'something that joins' ]
a 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