Cassite vs natural language

Cassite and natural language both are nouns.

Word	Noun	Adjective	Verb	Adverb
Cassite	Yes	No	No	No
natural language	Yes	No	No	No

As nouns, natural language is a hypernym of Cassite; that is, natural language is a word with a broader meaning than Cassite:

Cassite: an ancient language spoken by the Kassites
natural language: a human written or spoken language used by a community; opposed to e.g. a computer language

Other hypernyms of Cassite include tongue.

Cassite (noun)	natural language (noun)
an ancient language spoken by the Kassites	a human written or spoken language used by a community; opposed to e.g. a computer language
a member of an ancient people who ruled Babylonia between 1600 and 1200 BC