United States Mint vs U.S. Mint

United States Mint and U.S. Mint both are nouns.

Word	Noun	Adjective	Verb	Adverb
United States Mint	Yes	No	No	No
U.S. Mint	Yes	No	No	No

As nouns, United States Mint and U.S. Mint are synonyms defined as:

United States Mint and U.S. Mint: the mint that manufactures and distributes United States coins for circulation through Federal Reserve Banks; processes gold and silver bullion

Other synonyms of United States Mint include US Mint.

United States Mint (noun)	U.S. Mint (noun)
the mint that manufactures and distributes United States coins for circulation through Federal Reserve Banks; processes gold and silver bullion	the mint that manufactures and distributes United States coins for circulation through Federal Reserve Banks; processes gold and silver bullion