insulate vs alter

insulate and alter both are verbs.

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

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

insulate: protect from heat, cold, or noise by surrounding with insulating material
alter: cause to change; make different; cause a transformation

Other hypernyms of insulate include change, modify.

insulate (verb)	alter (verb)
place or set apart	remove the ovaries of
protect from heat, cold, or noise by surrounding with insulating material	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