Palmetto State vs South Carolina

Palmetto State and South Carolina both are nouns.

Word	Noun	Adjective	Verb	Adverb
Palmetto State	Yes	No	No	No
South Carolina	Yes	No	No	No

As nouns, Palmetto State and South Carolina are synonyms defined as:

Palmetto State and South Carolina: a state in the Deep South; one of the original 13 colonies

Other synonyms of Palmetto State include S.C., SC.

Palmetto State (noun)	South Carolina (noun)
a state in the Deep South; one of the original 13 colonies	a state in the Deep South; one of the original 13 colonies
	one of the British colonies that formed the United States, with capital Charles Towne