Austronesian vs habitant

Austronesian and habitant both are nouns.

Word	Noun	Adjective	Verb	Adverb
Austronesian	Yes	Yes	No	No
habitant	Yes	No	No	No

As nouns, habitant is a hypernym of Austronesian; that is, habitant is a word with a broader meaning than Austronesian:

Other hypernyms of Austronesian include denizen, dweller, indweller, inhabitant.

Austronesian (noun)	habitant (noun)
the family of languages spoken in Australia and Formosa and Malaysia and Polynesia	a person who inhabits a particular place
a native or inhabitant of Austronesia

Austronesian (adjective)	habitant (adjective)
of or relating to or characteristic of Austronesia or its people or culture