silence vs suppress

silence is a noun but suppress is not a noun.

Word	Noun	Adjective	Verb	Adverb
silence	Yes	No	Yes	No
suppress	No	No	Yes	No

As verbs, suppress is a hypernym of silence; that is, suppress is a word with a broader meaning than silence:

Other hypernyms of silence include conquer, stamp down, subdue.

As verbs, suppress is a hypernym of silence; that is, suppress is a word with a broader meaning than silence:

Other hypernyms of silence include conquer, stamp down, subdue.

silence (noun)	suppress (noun)
the absence of sound
a refusal to speak when expected
the trait of keeping things secret
the state of being silent (as when no one is speaking)

silence (verb)	suppress (verb)
cause to be quiet or not talk	bring under control by force or authority
keep from expression, for example by threats or pressure	lessen to the point of stopping
	put out of one's consciousness
	consciously restrain from showing; of emotions, desires, impulses, or behavior
	come down on or keep down by unjust use of one's authority