(chiefly Britain) a ball game, somewhat like tennis, played against a wall. / (poker slang) A pair of fives. / (UK, prison slang) The cells located on the fourth floor.

(UK) Abbreviation of MI5.

A suburb of Lille, Nord department, Hauts-de-France, France.

present participle of five

(military, slang) On an aircraft carrier, the state where fighters and crew are on guard, standing by in the aircraft, strapped in and ready to be launched in five minutes or less.

A hard slap on bare skin with a hand that leaves a red, fully hand-shaped mark. / A mark from such a slap.

(rugby) The five forwards who form the front row and the second row in the scrum. / (comedy) A five-minute set of jokes performed by a stand-up comedian, usually made up of only their best material.

plural of five-and-ten

(singular only, mathematics) A particular lemma that claims the existence of a particular isomorphism in a commutative diagram given certain other homomorphisms in the diagram.

(card games) five cards of the same rank, often only possible if one or more wild cards are being used.