tagger vs doer

tagger and doer both are nouns.

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

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

Other hypernyms of tagger include actor, worker.

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

tagger: someone who assigns labels to the grammatical constituents of textual matter
doer: a person who acts and gets things done

Other hypernyms of tagger include actor, worker.

tagger (noun)	doer (noun)
a computer program that attaches labels to the grammatical constituents of textual matter	a person who acts and gets things done
someone who appends or joins one thing to another
someone who assigns labels to the grammatical constituents of textual matter