Boast :: Boast (v. i.) To vaunt one's self; to brag; to say or tell things which are intended to give others a high opinion of one's self or of things belonging to one's self; as, to boast of one's exploits courage, descent, wealth..
Boast :: Boast (v. i.) To speak in exulting language of another; to glory; to exult.
Boast :: Boast (v. t.) To display in ostentatious language; to speak of with pride, vanity, or exultation, with a view to self-commendation; to extol..