boast vs bluster

boast and bluster both are nouns.

Word	Noun	Adjective	Verb	Adverb
boast	Yes	No	Yes	No
bluster	Yes	No	Yes	No

As nouns, bluster is a hyponym of boast; that is, bluster is a word with a more specific, narrower meaning than boast:

As verbs, boast and bluster are synonyms defined as:

Other synonyms of boast include blow, brag, gas, gasconade, shoot a line, swash, tout, vaunt.

boast (noun)	bluster (noun)
speaking of yourself in superlatives	a swaggering show of courage
	vain and empty boasting
	a violent gusty wind
	noisy confusion and turbulence

boast (verb)	bluster (verb)
show off	act in an arrogant, overly self-assured, or conceited manner
wear or display in an ostentatious or proud manner	show off
	blow hard; be gusty, as of wind