immunity vs medical specialty

immunity and medical specialty both are nouns.

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

immunity (noun)	medical specialty (noun)
an act exempting someone	the branches of medical science that deal with nonsurgical techniques
the quality of being unaffected by something
the state of not being susceptible
(medicine) the condition in which an organism can resist disease