expand vs blow up

expand and blow up both are verbs.

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

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

Other synonyms of expand include amplify, inflate.

As verbs, blow up is a hyponym of expand; that is, blow up is a word with a more specific, narrower meaning than expand:

Other hyponyms of expand include develop, inflate.

expand (verb)	blow up (verb)
grow vigorously	make large
exaggerate or make bigger	exaggerate or make bigger
become larger in size or volume or quantity	to swell or cause to enlarge
expand the influence of	cause to burst with a violent release of energy
make bigger or wider in size, volume, or quantity	fill with gas or air
add details, as to an account or idea; clarify the meaning of and discourse in a learned way, usually in writing	burst and release energy as through a violent chemical or physical reaction
extend in one or more directions	add details to
	get very angry and fly into a rage