Boast v. i. [imp. & p. p. Boasted; p. pr. & vb. n. Boasting.]
 1. 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.
    By grace are ye saved through faith; and that not of yourselves: . . not of works, lest any man should boast.   --Eph. ii. 8, 9.
 2. To speak in exulting language of another; to glory; to exult.
    In God we boast all the day long.   --Ps. xliv. 8
 Syn: -- To brag; bluster; vapor; crow; talk big.