neutralise vs alter

neutralise and alter both are verbs.

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

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

Other hypernyms of neutralise include change, modify.

neutralise (verb)	alter (verb)
make chemically neutral	remove the ovaries of
make ineffective by counterbalancing the effect of	become different in some particular way, without permanently losing one's or its former characteristics or essence
make incapable of military action	cause to change; make different; cause a transformation
get rid of (someone who may be a threat) by killing	insert words into texts, often falsifying it thereby
	make an alteration to