Guangzhou vs China

Guangzhou and China both are nouns.

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

Guangzhou (noun)	China (noun)
a city on the Zhu Jiang delta in southern China; the capital of Guangdong province and a major deep-water port	a communist nation that covers a vast territory in eastern Asia; the most populous country in the world
	a government on the island of Taiwan established in 1949 by Chiang Kai-shek after the conquest of mainland China by the Communists led by Mao Zedong