Kwangchow vs Guangzhou

Kwangchow and Guangzhou both are nouns.

Word	Noun	Adjective	Verb	Adverb
Kwangchow	Yes	No	No	No
Guangzhou	Yes	No	No	No

As nouns, Kwangchow and Guangzhou are synonyms defined as:

Kwangchow and Guangzhou: a city on the Zhu Jiang delta in southern China; the capital of Guangdong province and a major deep-water port

Other synonyms of Kwangchow include Canton, Kuangchou.

Kwangchow (noun)	Guangzhou (noun)
a city on the Zhu Jiang delta in southern China; the capital of Guangdong province and a major deep-water port	a city on the Zhu Jiang delta in southern China; the capital of Guangdong province and a major deep-water port