Shanghai vs China

Shanghai and China both are nouns.

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

Shanghai (noun)	China (noun)
the largest city of China; located in the east on the Pacific; one of the largest ports in the world	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