Mo. vs Saint Francis River

Mo. and Saint Francis River both are nouns.

Word	Noun	Adjective	Verb	Adverb
Mo.	Yes	No	No	No
Saint Francis River	Yes	No	No	No

Mo. (noun)	Saint Francis River (noun)
a midwestern state in central United States; a border state during the American Civil War, Missouri was admitted to the Confederacy without actually seceding from the Union	a tributary of the Mississippi River that rises in Missouri and flows southeastward through Arkansas