Tonga vs Bantoid language

Tonga and Bantoid language both are nouns.

Word	Noun	Adjective	Verb	Adverb
Tonga	Yes	No	No	No
Bantoid language	Yes	No	No	No

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

Tonga: the language of the Tongan people of south central Africa (Zambia and Rhodesia)
Bantoid language: a family of languages widely spoken in the southern half of the African continent

Other hypernyms of Tonga include Bantu.

Tonga (noun)	Bantoid language (noun)
the language of the Tongan people of south central Africa (Zambia and Rhodesia)	a family of languages widely spoken in the southern half of the African continent
a monarchy on a Polynesian archipelago in the South Pacific; achieved independence from the United Kingdom in 1970