experience vs undergo

experience is a noun but undergo is not a noun.

Word	Noun	Adjective	Verb	Adverb
experience	Yes	No	Yes	No
undergo	No	No	Yes	No

As verbs, undergo is a hypernym of experience; that is, undergo is a word with a broader meaning than experience:

As verbs, undergo is a hypernym of experience; that is, undergo is a word with a broader meaning than experience:

experience (noun)	undergo (noun)
the content of direct observation or participation in an event
the accumulation of knowledge or skill that results from direct participation in events or activities
an event as apprehended

experience (verb)	undergo (verb)
undergo	go through
have firsthand knowledge of states, situations, emotions, or sensations
undergo an emotional sensation or be in a particular state of mind
go through (mental or physical states or experiences)
undergo or live through a difficult experience