reject vs renounce

reject is a noun but renounce is not a noun.

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

As verbs, renounce is a hyponym of reject; that is, renounce is a word with a more specific, narrower meaning than reject:

reject (noun)	renounce (noun)
the person or thing that is rejected or set aside as inferior in quality

reject (verb)	renounce (verb)
not accept something given or offered	cast off
dismiss from consideration or a contest	turn away from; give up
deem wrong or inappropriate	leave (a job, post, or position) voluntarily
reject with contempt	give up, such as power, as of monarchs and emperors, or duties and obligations
not accept as true
refuse entrance or membership
resist immunologically the introduction of some foreign tissue or organ