sniveler vs doer

sniveler and doer both are nouns.

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

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

Other hypernyms of sniveler include actor, worker.

sniveler (noun)	doer (noun)
a person who breathes audibly through a congested nose	a person who acts and gets things done