damp vs weaken

damp is a noun but weaken is not a noun.

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

As verbs, damp and weaken are synonyms defined as:

Other synonyms of damp include break, dampen, soften.

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

Other hypernyms of damp include break, damp, dampen, soften.

damp (noun)	weaken (noun)
a slight wetness

damp (adjective)	weaken (adjective)
slightly wet

damp (verb)	weaken (verb)
lessen in force or effect	become weaker
make vague or obscure or make (an image) less visible	lessen the strength of
restrain or discourage	reduce the level or intensity or size or scope of
deaden (a sound or noise), especially by wrapping	lessen in force or effect
	destroy property or hinder normal operations