communicator vs doer

communicator and doer both are nouns.

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

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

Other hypernyms of communicator include actor, worker.

communicator (noun)	doer (noun)
a person who communicates with others	a person who acts and gets things done