suppression vs prevention

suppression and prevention both are nouns.

Word	Noun	Adjective	Verb	Adverb
suppression	Yes	No	No	No
prevention	Yes	No	No	No

As nouns, prevention is a hypernym of suppression; that is, prevention is a word with a broader meaning than suppression:

Other hypernyms of suppression include bar.

suppression (noun)	prevention (noun)
the act of withholding or withdrawing some book or writing from publication or circulation	the act of preventing
forceful prevention; putting down by power or authority
(psychology) the conscious exclusion of unacceptable thoughts or desires
the failure to develop some part or organ