An act of betrayal or treachery

(transitive) To return, restore (a thing to its original owner or location etc.).

A listing of all the works of a specific artist, or all the books, records etc of a specific publisher, including works that are no longer available. / (informal) The works themselves.

plural of back yard

(American football) Of a quarterback or other player in the backfield, to take a number of steps back from the line of scrimmage immediately after the snap or hike of the ball, to avoid defenders.

(American football) The act by a player in the backfield of dropping back from the line of scrimmage after the hike of the ball.

(American football) The act by a player in the backfield of dropping back from the line of scrimmage after the hike of the ball.

(phonetics) Any vowel sound produced in the back of the mouth, such as /uː/ in rule or /əʊ/ in pole.

To make hair flat by putting oil, water, etc. on it.

(British Commonwealth, dated in US) Alternative form of fullback