liquefy vs alter

liquefy and alter both are verbs.

Word	Noun	Adjective	Verb	Adverb
liquefy	No	No	Yes	No
alter	No	No	Yes	No

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

Other hypernyms of liquefy include change, modify.

liquefy (verb)	alter (verb)
become liquid or fluid when heated	remove the ovaries of
make (a solid substance) liquid, as by heating	become different in some particular way, without permanently losing one's or its former characteristics or essence
become liquid	cause to change; make different; cause a transformation
	insert words into texts, often falsifying it thereby
	make an alteration to