expectorator vs doer

expectorator and doer both are nouns.

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

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

Other hypernyms of expectorator include actor, worker.

expectorator (noun)	doer (noun)
a medicine promoting expectoration	a person who acts and gets things done
a person who spits (ejects saliva or phlegm from the mouth)