see vs discover

see is a noun but discover is not a noun.

Word	Noun	Adjective	Verb	Adverb
see	Yes	No	Yes	No
discover	No	No	Yes	No

As verbs, see and discover are synonyms defined as:

Other synonyms of see include find out, get a line, get wind, get word, hear, learn, pick up.

As verbs, discover is a hypernym of see; that is, discover is a word with a broader meaning than see:

see: observe as if with an eye
discover: discover or determine the existence, presence, or fact of by perception with the eyes

Other hypernyms of see include detect, find, notice, observe.

see (noun)	discover (noun)
the seat within a bishop's diocese where his cathedral is located

see (verb)	discover (verb)
deem to be	get to know or become aware of, usually accidentally
perceive (an idea or situation) mentally	identify as in botany or biology, for example
get to know or become aware of, usually accidentally	make known to the public information that was previously known only to a few people or that was meant to be kept a secret
be careful or certain to do something; make certain of something	make a discovery, make a new finding
deliberate or decide	see for the first time; make a discovery
make sense of; assign a meaning to	discover or determine the existence, presence, or fact of by perception with the eyes
find out, learn, or determine with certainty, usually by making an inquiry or other effort	find unexpectedly
match or meet
receive as a specified guest
imagine; conceive of; see in one's mind
come together
conduct someone someplace
perceive by sight or have the power to perceive by sight
perceive or be contemporaneous with
see or watch
see and understand, have a good eye
observe as if with an eye
undergo or live through a difficult experience
observe, check out, and look over carefully or inspect
date regularly; have a steady relationship with
go to see a place, as for entertainment
go to see for professional or business reasons
go to see for a social visit
take charge of or deal with