expand vs intumesce

expand and intumesce both are verbs.

Word	Noun	Adjective	Verb	Adverb
expand	No	No	Yes	No
intumesce	No	No	Yes	No

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

Other hyponyms of expand include balloon, billow, inflate, swell, swell up, tumefy, tumesce.

expand (verb)	intumesce (verb)
grow vigorously	expand abnormally
exaggerate or make bigger	move upwards in bubbles, as from the effect of heating; also used metaphorically
become larger in size or volume or quantity
expand the influence of
make bigger or wider in size, volume, or quantity
add details, as to an account or idea; clarify the meaning of and discourse in a learned way, usually in writing
extend in one or more directions