CA vs California

CA and California both are nouns.

Word	Noun	Adjective	Verb	Adverb
CA	Yes	No	No	No
California	Yes	No	No	No

As nouns, CA and California are synonyms defined as:

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

Other synonyms of CA include Calif., Golden State.

CA (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