Martin of Tours vs St. Martin

Martin of Tours and St. Martin both are nouns.

Word	Noun	Adjective	Verb	Adverb
Martin of Tours	Yes	No	No	No
St. Martin	Yes	No	No	No

As nouns, Martin of Tours and St. Martin are synonyms defined as:

Martin of Tours and St. Martin: French bishop who is a patron saint of France (died in 397)

Other synonyms of Martin of Tours include Martin.

Martin of Tours (noun)	St. Martin (noun)
French bishop who is a patron saint of France (died in 397)	an island in the western Leeward Islands; administered jointly by France and the Netherlands
	French bishop who is a patron saint of France (died in 397)