saver vs doer

saver and doer both are nouns.

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

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

Other hypernyms of saver include actor, worker.

saver (noun)	doer (noun)
someone who saves (especially money)	a person who acts and gets things done
someone who saves something from danger or violence