Chang Jiang vs Yangtze River

Chang Jiang and Yangtze River both are nouns.

Word	Noun	Adjective	Verb	Adverb
Chang Jiang	Yes	No	No	No
Yangtze River	Yes	No	No	No

As nouns, Chang Jiang and Yangtze River are synonyms defined as:

Chang Jiang and Yangtze River: the longest river of Asia; flows eastward from Tibet into the East China Sea near Shanghai

Other synonyms of Chang Jiang include Chang, Changjiang, Yangtze, Yangtze Kiang.

Chang Jiang (noun)	Yangtze River (noun)
the longest river of Asia; flows eastward from Tibet into the East China Sea near Shanghai	the longest river of Asia; flows eastward from Tibet into the East China Sea near Shanghai