I. (ˈ)ō|pa(a)(ə)r, -pe(ə)r adjective
Etymology: French, literally, on equal terms
: consisting of an arrangement whereby one thing is exchanged for another of a similar nature
an au pair tutoring post that enables one to learn a foreign language in return for English lessons
II. noun
( plural au pairs )
Etymology: au pair , adjective
: a usually young foreign person who cares for children and does domestic work for a family in return for room and board and the opportunity to experience another culture