St. Louis vs saint

St. Louis and saint both are nouns.

Word	Noun	Adjective	Verb	Adverb
St. Louis	Yes	No	No	No
saint	Yes	No	Yes	No

St. Louis (noun)	saint (noun)
the largest city in Missouri; a busy river port on the Mississippi River near its confluence with the Missouri River; was an important staging area for wagon trains westward in the 19th century	person of exceptional holiness
king of France and son of Louis VIII; he led two unsuccessful Crusades; considered an ideal medieval king (1214-1270)	model of excellence or perfection of a kind; one having no equal
	a person who has died and has been declared a saint by canonization

St. Louis (verb)	saint (verb)
	declare (a dead person) to be a saint
	hold sacred