Pearl River vs Chu Kiang

Pearl River and Chu Kiang both are nouns.

Word	Noun	Adjective	Verb	Adverb
Pearl River	Yes	No	No	No
Chu Kiang	Yes	No	No	No

As nouns, Pearl River and Chu Kiang are synonyms defined as:

Pearl River and Chu Kiang: a river in southeast China that flows into the South China Sea

Other synonyms of Pearl River include Canton River, Zhu Jiang.

Pearl River (noun)	Chu Kiang (noun)
a river in Mississippi that flows southward to the Gulf of Mexico	a river in southeast China that flows into the South China Sea
a river in southeast China that flows into the South China Sea