From WordNet (r) 3.0 (2006):
boast
n 1: speaking of yourself in superlatives [syn: boast,
boasting, self-praise, jactitation]
v 1: show off [syn: boast, tout, swash, shoot a line,
brag, gas, blow, bluster, vaunt, gasconade]
2: wear or display in an ostentatious or proud manner; "she was
sporting a new hat" [syn: sport, feature, boast]