reserve vs medical specialty

reserve and medical specialty both are nouns.

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

reserve (noun)	medical specialty (noun)
the trait of being uncommunicative; not volunteering anything more than necessary	the branches of medical science that deal with nonsurgical techniques
formality and propriety of manner
armed forces that are not on active duty but can be called in an emergency
a district that is reserved for particular purpose
an athlete who plays only when a starter on the team is replaced
something kept back or saved for future use or a special purpose
(medicine) potential capacity to respond in order to maintain vital functions

reserve (verb)	medical specialty (verb)
give or assign a resource to a particular person or cause
obtain or arrange (for oneself) in advance
hold back or set aside, especially for future use or contingency
arrange for and reserve (something for someone else) in advance