apposition

Concise Oxford English Dictionary © 2008 Oxford University Press:
apposition/apəˈzɪʃn/

▶noun

• 1 chiefly technical the positioning of things next to each other.

• 2 Grammar a relationship between two or more words in which the units are grammatically parallel and have the same referent (e.g. my friend Sue).

– derivatives
appositional adjective & noun,
appositive adjective & noun.

– origin ME: from late L. appositio(n-), from apponere (see apposite).