Little Horn vs river

Little Horn and river both are nouns.

Word	Noun	Adjective	Verb	Adverb
Little Horn	Yes	No	No	No
river	Yes	No	No	No

Little Horn (noun)	river (noun)
a river that flows from northern Wyoming into the Bighorn River in southern Montana; site of Custer's Last Stand	a large natural stream of water (larger than a creek)