Communist China vs PRC

Communist China and PRC both are nouns.

Word	Noun	Adjective	Verb	Adverb
Communist China	Yes	No	No	No
PRC	Yes	No	No	No

As nouns, Communist China and PRC are synonyms defined as:

Communist China and PRC: a communist nation that covers a vast territory in eastern Asia; the most populous country in the world

Other synonyms of Communist China include Cathay, China, mainland China, People's Republic of China, Red China.

Communist China (noun)	PRC (noun)
a communist nation that covers a vast territory in eastern Asia; the most populous country in the world	a communist nation that covers a vast territory in eastern Asia; the most populous country in the world