soften vs deafen

soften and deafen both are verbs.

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

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

Other hyponyms of soften include damp, dampen, deaden.

soften (verb)	deafen (verb)
become soft or softer	make soundproof
make soft or softer	make or render deaf
lessen in force or effect	be unbearably loud
make less severe or harsh
protect from impact
make (images or sounds) soft or softer
give in, as to influence or pressure