classical Latin vs Latin

classical Latin and Latin both are nouns.

Word	Noun	Adjective	Verb	Adverb
classical Latin	Yes	No	No	No
Latin	Yes	Yes	No	No

As nouns, Latin is a hypernym of classical Latin; that is, Latin is a word with a broader meaning than classical Latin:

classical Latin (noun)	Latin (noun)
the language of educated people in ancient Rome	any dialect of the language of ancient Rome
	a person who is a member of those peoples whose languages derived from Latin
	an inhabitant of ancient Latium

classical Latin (adjective)	Latin (adjective)
	of or relating to the ancient Latins or the Latin language
	of or relating to the ancient region of Latium
	relating to languages derived from Latin
	relating to people or countries speaking Romance languages