puff up vs amplify

puff up and amplify both are verbs.

Word	Noun	Adjective	Verb	Adverb
puff up	No	No	Yes	No
amplify	No	No	Yes	No

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

Other hypernyms of puff up include blow up, expand, inflate.

puff up (verb)	amplify (verb)
make larger or distend	increase in size, volume or significance
to swell or cause to enlarge	increase the volume of
praise extravagantly	exaggerate or make bigger
become filled with pride, arrogance, or anger	to enlarge beyond bounds or the truth