search vs quest

search and quest both are nouns.

Word	Noun	Adjective	Verb	Adverb
search	Yes	No	Yes	No
quest	Yes	No	Yes	No

As nouns, quest is a hyponym of search; that is, quest is a word with a more specific, narrower meaning than search:

search: the activity of looking thoroughly in order to find something or someone
quest: the act of searching for something

As nouns, quest is a hyponym of search; that is, quest is a word with a more specific, narrower meaning than search:

Other hyponyms of search include hunt, pursuance, pursuit.

search (noun)	quest (noun)
the activity of looking thoroughly in order to find something or someone	the act of searching for something
boarding and inspecting a ship on the high seas	a search for an alternative that meets cognitive criteria
an investigation seeking answers
the examination of alternative hypotheses
an operation that determines whether one or more of a set of items has a specified property

search (verb)	quest (verb)
inquire into	seek alms, as for religious purposes
try to locate or discover, or try to establish the existence of	express the need or desire for
subject to a search	bark with prolonged noises, of dogs
search or seek	search the trail of (game)
	make a search (for)