discredit vs reject

discredit and reject both are nouns.

Word	Noun	Adjective	Verb	Adverb
discredit	Yes	No	Yes	No
reject	Yes	No	Yes	No

As verbs, reject is a hypernym of discredit; that is, reject is a word with a broader meaning than discredit:

discredit (noun)	reject (noun)
the state of being held in low esteem	the person or thing that is rejected or set aside as inferior in quality

discredit (verb)	reject (verb)
reject as false; refuse to accept	not accept something given or offered
cause to be distrusted or disbelieved	dismiss from consideration or a contest
damage the reputation of	deem wrong or inappropriate
	reject with contempt
	not accept as true
	refuse entrance or membership
	resist immunologically the introduction of some foreign tissue or organ