bluster vs amplify

bluster is a noun but amplify is not a noun.

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

As verbs, amplify is a hypernym of bluster; that is, amplify is a word with a broader meaning than bluster:

Other hypernyms of bluster include exaggerate, hyperbolise, hyperbolize, magnify, overdraw, overstate.

bluster (noun)	amplify (noun)
a swaggering show of courage
vain and empty boasting
a violent gusty wind
noisy confusion and turbulence

bluster (verb)	amplify (verb)
act in an arrogant, overly self-assured, or conceited manner	increase in size, volume or significance
show off	increase the volume of
blow hard; be gusty, as of wind	exaggerate or make bigger
	to enlarge beyond bounds or the truth