S.D. vs Mount Rushmore State

S.D. and Mount Rushmore State both are nouns.

Word	Noun	Adjective	Verb	Adverb
S.D.	Yes	No	No	No
Mount Rushmore State	Yes	No	No	No

As nouns, S.D. and Mount Rushmore State are synonyms defined as:

Other synonyms of S.D. include Coyote State, SD, South Dakota.

S.D. (noun)	Mount Rushmore State (noun)
a state in north central United States	a state in north central United States