au pairau pair
a young person from another country, typically a young woman, who agrees to live with a family and help with child-care duties, housework, etc. in exchange for room and board
Origin of au pairFr, literally , as an equal
A young foreigner who does domestic work for a family in exchange for room and board and a chance to learn the family's language.
Origin of au pairFrench : au, at the + pair, equal.
(plural au pairs)