n (countable) A hardened rectangular block of mud, clay etc., used for building.
n (uncountable) Such hardened mud, clay, etc. considered collectively, as a building material.
n (countable) Something shaped like a brick.
n (slang, dated) A helpful and reliable person.
n (basketball, slang) A shot which misses, particularly one which bounces directly out of the basket because of a too-flat trajectory, as if the ball were a heavier object.
n (informal) A power brick; an external power supply consisting of a small box with an integral male power plug and an attached electric cord terminating in another power plug.
n (computing slang, figurative) An electronic device, especially a heavy box-shaped one, that has become non-functional or obsolete.
n (UK, naval, slang) A projectile.
n (firearms) A carton of 500 rimfire cartridges, which forms the approximate size and shape of a brick.
n (poker slang) A community card (usually the turn or the river) which does not improve a player's hand.
n The colour brick red.
n (slang) A kilogram of cocaine.
n A surname.