pitched battle vs battle of St Mihiel

pitched battle and battle of St Mihiel both are nouns.

Word	Noun	Adjective	Verb	Adverb
pitched battle	Yes	No	No	No
battle of St Mihiel	Yes	No	No	No

pitched battle (noun)	battle of St Mihiel (noun)
a fierce battle fought in close combat between troops in predetermined positions at a chosen time and place	a battle in the Meuse-Argonne operation in World War I (1918); the battle in which American troops launched their first offensive in France