1 [intransitive and transitive]
to talk too proudly about your abilities, achievements, or possessions:
'I wouldn't be afraid,' she boasted.
Amy boasted that her son was a genius.
He's boasting about how much money he has made.
The company is inclined to boast of its success.
2 [transitive not in progressive]
if a place, object, or organization boasts something, it has something that is very good:
The city boasts two excellent museums.
The Society boasts 3000 members worldwide.
—boaster noun [countable]