Cathay vs Xinjiang Uighur Autonomous Region

Cathay and Xinjiang Uighur Autonomous Region both are nouns.

Word	Noun	Adjective	Verb	Adverb
Cathay	Yes	No	No	No
Xinjiang Uighur Autonomous Region	Yes	No	No	No

Cathay (noun)	Xinjiang Uighur Autonomous Region (noun)
a communist nation that covers a vast territory in eastern Asia; the most populous country in the world	an autonomous province in far northwestern China on the border with Mongolia and Kazakhstan; the largest province in the People's Republic of China and the homeland of the Uighur people