neutralise vs weaken

neutralise and weaken both are verbs.

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

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

neutralise (verb)	weaken (verb)
make chemically neutral	become weaker
make ineffective by counterbalancing the effect of	lessen the strength of
make incapable of military action	reduce the level or intensity or size or scope of
get rid of (someone who may be a threat) by killing	lessen in force or effect
	destroy property or hinder normal operations