plump out vs modify

plump out and modify both are verbs.

Word	Noun	Adjective	Verb	Adverb
plump out	No	No	Yes	No
modify	No	No	Yes	No

As verbs, modify is a hypernym of plump out; that is, modify is a word with a broader meaning than plump out:

Other hypernyms of plump out include alter, change.

plump out (verb)	modify (verb)
make fat or plump	make less severe or harsh or extreme
depart suddenly	add a modifier to a constituent
	cause to change; make different; cause a transformation