Golden State vs California

Golden State and California both are nouns.

Word	Noun	Adjective	Verb	Adverb
Golden State	Yes	No	No	No
California	Yes	No	No	No

As nouns, Golden State and California are synonyms defined as:

Golden State and California: a state in the western United States on the Pacific; the 3rd largest state; known for earthquakes

Other synonyms of Golden State include CA, Calif..

Golden State (noun)	California (noun)
a state in the western United States on the Pacific; the 3rd largest state; known for earthquakes	a state in the western United States on the Pacific; the 3rd largest state; known for earthquakes