contemporary vs synchronic

contemporary is a noun but synchronic is not a noun.

Word	Noun	Adjective	Verb	Adverb
contemporary	Yes	Yes	No	No
synchronic	No	Yes	No	No

contemporary (noun)	synchronic (noun)
a person of nearly the same age as another

contemporary (adjective)	synchronic (adjective)
belonging to the present time	concerned with phenomena (especially language) at a particular period without considering historical antecedents
characteristic of the present	occurring or existing at the same time or having the same period or phase
occurring in the same period of time	(of taxa) occurring in the same period of geological time