Bantoid language vs Niger-Congo

Bantoid language and Niger-Congo both are nouns.

Word	Noun	Adjective	Verb	Adverb
Bantoid language	Yes	No	No	No
Niger-Congo	Yes	No	No	No

As nouns, Niger-Congo is a hypernym of Bantoid language; that is, Niger-Congo is a word with a broader meaning than Bantoid language:

Bantoid language: a family of languages widely spoken in the southern half of the African continent
Niger-Congo: a family of African language spoken in west Africa

Bantoid language (noun)	Niger-Congo (noun)
a family of languages widely spoken in the southern half of the African continent	a family of African language spoken in west Africa