First World War vs Meuse

First World War and Meuse both are nouns.

Word	Noun	Adjective	Verb	Adverb
First World War	Yes	No	No	No
Meuse	Yes	No	No	No

First World War (noun)	Meuse (noun)
a war between the allies (Russia, France, British Empire, Italy, United States, Japan, Rumania, Serbia, Belgium, Greece, Portugal, Montenegro) and the Central Powers (Germany, Austria-Hungary, Turkey, Bulgaria) from 1914 to 1918	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 European river; flows into the North Sea