A single girl (or, rarely, a boy), usually a foreigner, who helps a host family with childcare, housework, or both while staying as a guest with a host family, and generally receives a small allowance (or pocket money).

Naturally. / In the plainest or simplest manner. / In the nude: in the naked state. / Without makeup and with one's natural hair color.

(usually humorous, emphatic) on the contrary

Being familiar with or informed about something.

plural of au pair

deep down, in the end

(cooking, of meat, postmodifier) Prepared or served in or with gravy made from its own juices.

(proscribed) Jus: a gravy served in or with a meat dish and made from its juices.

(cooking) Covered with a crust of breadcrumbs (and often cheese) then browned under a grill.

(humorous) Au revoir.