Meuse River vs Battle of Saint-Mihiel

Meuse River and Battle of Saint-Mihiel both are nouns.

Word	Noun	Adjective	Verb	Adverb
Meuse River	Yes	No	No	No
Battle of Saint-Mihiel	Yes	No	No	No

Meuse River (noun)	Battle of Saint-Mihiel (noun)
an American operation in World War I (1918); American troops under Pershing drove back the German armies which were saved only by the armistice on November 11	a battle in the Meuse-Argonne operation in World War I (1918); the battle in which American troops launched their first offensive in France
a European river; flows into the North Sea