dissident vs doer

dissident and doer both are nouns.

Word	Noun	Adjective	Verb	Adverb
dissident	Yes	Yes	No	No
doer	Yes	No	No	No

As nouns, doer is a hypernym of dissident; that is, doer is a word with a broader meaning than dissident:

Other hypernyms of dissident include actor, worker.

dissident (noun)	doer (noun)
a person who dissents from some established policy	a person who acts and gets things done

dissident (adjective)	doer (adjective)
disagreeing, especially with a majority
characterized by departure from accepted beliefs or standards