rejection vs medical specialty

rejection and medical specialty both are nouns.

Word	Noun	Adjective	Verb	Adverb
rejection	Yes	No	No	No
medical specialty	Yes	No	No	No

rejection (noun)	medical specialty (noun)
the act of rejecting something	the branches of medical science that deal with nonsurgical techniques
the speech act of rejecting
(medicine) an immunological response that refuses to accept substances or organisms that are recognized as foreign
the state of being rejected