Diamond State vs First State

Diamond State and First State both are nouns.

Word	Noun	Adjective	Verb	Adverb
Diamond State	Yes	No	No	No
First State	Yes	No	No	No

As nouns, Diamond State and First State are synonyms defined as:

Diamond State and First State: a Mid-Atlantic state; one of the original 13 colonies, with capital Dover

Other synonyms of Diamond State include DE, Del., Delaware.

Diamond State (noun)	First State (noun)
a Mid-Atlantic state; one of the original 13 colonies, with capital Dover	a Mid-Atlantic state; one of the original 13 colonies, with capital Dover