buster vs doer

buster and doer both are nouns.

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

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

Other hypernyms of buster include actor, worker.

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

buster: a person born in the generation following the baby boom when the birth rate fell dramatically
doer: a person who acts and gets things done

Other hypernyms of buster include actor, worker.

buster (noun)	doer (noun)
a person (or thing) that breaks up or overpowers something	a person who acts and gets things done
a person who breaks horses
a robust child
an informal form of address for a man
a person born in the generation following the baby boom when the birth rate fell dramatically