autodidact vs doer

autodidact and doer both are nouns.

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

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

Other hypernyms of autodidact include actor, worker.

autodidact (noun)	doer (noun)
a person who has taught himself	a person who acts and gets things done