puff up vs blow up

puff up and blow up both are verbs.

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

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

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

As verbs, puff up and blow up are synonyms defined as:

Other synonyms of puff up include puff, puff out.

puff up (verb)	blow up (verb)
make larger or distend	make large
to swell or cause to enlarge	exaggerate or make bigger
praise extravagantly	to swell or cause to enlarge
become filled with pride, arrogance, or anger	cause to burst with a violent release of energy
	fill with gas or air
	burst and release energy as through a violent chemical or physical reaction
	add details to
	get very angry and fly into a rage