searcher vs doer

searcher and doer both are nouns.

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

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

Other hypernyms of searcher include actor, worker.

searcher (noun)	doer (noun)
large metallic blue-green beetle that preys on caterpillars; found in North America	a person who acts and gets things done
someone making a search or inquiry
a customs official whose job is to search baggage or goods or vehicles for contraband or dutiable items