disappear vs weaken

disappear and weaken both are verbs.

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

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

disappear (verb)	weaken (verb)
get lost, as without warning or explanation	become weaker
cease to exist	lessen the strength of
become less intense and fade away gradually	reduce the level or intensity or size or scope of
become invisible or unnoticeable	lessen in force or effect
	destroy property or hinder normal operations