In the Old Testament it mentions at Proverbs 27:1 - Do not make your boast about the next day, for you do not know what a day will give birth to.
Ghost boast
Brag
Yes.
BRAG is the correct spelling of 'to boast.'
brag, crow, vaunt, talk big, blow your own trumpet, show off
Well to brag means to boast... so you could say "My worst enemy won a swimming competition and is going to brag about it tomorrow...." or "My friend got an A* for maths and keeps bragging about it."
Brag
To brag is to boast or speak proudly about one's accomplishments, possessions, or abilities in order to impress others or gain admiration. It often involves exaggerating one's achievements or qualities.
It means: to boast or brag.
wren
ghost boast
vaunt means to boast, to brag about