weaken vs deafen

weaken and deafen both are verbs.

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

As verbs, deafen is a hyponym of weaken; that is, deafen is a word with a more specific, narrower meaning than weaken:

Other hyponyms of weaken include damp, dampen, deaden.

weaken (verb)	deafen (verb)
become weaker	make soundproof
lessen the strength of	make or render deaf
reduce the level or intensity or size or scope of	be unbearably loud
lessen in force or effect
destroy property or hinder normal operations