plump out vs alter

plump out and alter both are verbs.

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

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

Other hypernyms of plump out include change, modify.

plump out (verb)	alter (verb)
make fat or plump	remove the ovaries of
depart suddenly	become different in some particular way, without permanently losing one's or its former characteristics or essence
	cause to change; make different; cause a transformation
	insert words into texts, often falsifying it thereby
	make an alteration to