Pelican State vs Louisiana

Pelican State and Louisiana both are nouns.

Word	Noun	Adjective	Verb	Adverb
Pelican State	Yes	No	No	No
Louisiana	Yes	No	No	No

As nouns, Pelican State and Louisiana are synonyms defined as:

Pelican State and Louisiana: a state in southern United States on the Gulf of Mexico; one of the Confederate states during the American Civil War

Other synonyms of Pelican State include La., LA.

Pelican State (noun)	Louisiana (noun)
a state in southern United States on the Gulf of Mexico; one of the Confederate states during the American Civil War	a state in southern United States on the Gulf of Mexico; one of the Confederate states during the American Civil War