Real Dictionary

boast
verb: If someone boasts about something that they have done or that they own, they talk about it very proudly, in a way that other people may find irritating or offensive.

boast in American English 1
to boast about
to talk proudly about deeds, abilities, etc., either one's own or those of someone close to one, esp. in a manner showing too much pride and satisfaction; brag
intransitive verb: to speak with exaggeration and excessive pride, esp. about oneself
noun: a thing boasted of; a cause for pride
transitive verb: to speak of with excessive pride or vanity

boast in American English 2
to do preliminary shaping on (sculpture, stonework, etc.) with a broad chisel
transitive verb: to dress or shape (stone) roughly

boast in British English 1
noun: a bragging statement
verb: to speak in exaggerated or excessively proud terms of one's possessions, skills, or superior qualities; brag

boast in British English 2
verb: to shape or dress (stone) roughly with a broad chisel

boast in British English 3
noun: a stroke in which the ball is hit on to one of the side walls before hitting the front wall
verb: to hit (the ball) in this way or make such a stroke