Ryukyuan vs Ryukyuan language

Ryukyuan and Ryukyuan language both are nouns.

Word	Noun	Adjective	Verb	Adverb
Ryukyuan	Yes	No	No	No
Ryukyuan language	Yes	No	No	No

As nouns, Ryukyuan and Ryukyuan language are synonyms defined as:

Ryukyuan and Ryukyuan language: the language (related to Japanese) that is spoken by the people of the Ryukyu Islands

Ryukyuan (noun)	Ryukyuan language (noun)
the language (related to Japanese) that is spoken by the people of the Ryukyu Islands	the language (related to Japanese) that is spoken by the people of the Ryukyu Islands
a member of the Japanese people living on the Ryukyu Islands southwest of Japan