Boastful means to talk proudly about something you have, or something you accomplished.
vaunt means to boast, to brag about
boast
Deprecation
Yes.
BOAST: -verb (used without object) 1. to speak with exaggeration and excessive pride, esp. about oneself.2. to speak with pride (often fol. by of): He boasted of his family's wealth. -verb (used with object) 3. to speak of with excessive pride or vanity: He boasts himself a genius.4. to be proud in the possession of: The town boasts a new school. -noun 5. a thing boasted of; a cause for pride: Talent is his boast. It is her boast that she has never betrayed a friend.6. exaggerated or objectionable speech; bragging: empty boasts and threats.
If you boast when you win you are rude. means to show-off
"I know you did a great job on your exam, but there is no reason for you to boast about it." Boast means the same thing as bragging.
vaunt means to boast, to brag about
wren
It means: to boast or brag.
Brag, boast
The preposition for the word "boast" is "about" or "of." For example, you can boast about your achievements or boast of your accomplishments.
'Crack up' means to brag or boast.
boast
You could say they were blowing (or tooting) their own horn.
njj
Russell Boast's birth name is Russell John Boast.