Hunan province vs Hunan

Hunan province and Hunan both are nouns.

Word	Noun	Adjective	Verb	Adverb
Hunan province	Yes	No	No	No
Hunan	Yes	No	No	No

As nouns, Hunan province and Hunan are synonyms defined as:

Hunan province and Hunan: a province in southeastern central China between the Nan Ling mountains and the Chang Jiang; noted for its timber and valuable mineral resources

Hunan province (noun)	Hunan (noun)
a province in southeastern central China between the Nan Ling mountains and the Chang Jiang; noted for its timber and valuable mineral resources	a province in southeastern central China between the Nan Ling mountains and the Chang Jiang; noted for its timber and valuable mineral resources