Sint Maarten vs St. Maarten

Sint Maarten and St. Maarten both are nouns.

Word	Noun	Adjective	Verb	Adverb
Sint Maarten	Yes	No	No	No
St. Maarten	Yes	No	No	No

As nouns, Sint Maarten and St. Maarten are synonyms defined as:

Sint Maarten and St. Maarten: an island in the western Leeward Islands; administered jointly by France and the Netherlands

Other synonyms of Sint Maarten include Saint Maarten, Saint Martin, St. Martin.

Sint Maarten (noun)	St. Maarten (noun)
an island in the western Leeward Islands; administered jointly by France and the Netherlands	an island in the western Leeward Islands; administered jointly by France and the Netherlands