pitched battle vs Battle of Chapultepec

pitched battle and Battle of Chapultepec both are nouns.

Word	Noun	Adjective	Verb	Adverb
pitched battle	Yes	No	No	No
Battle of Chapultepec	Yes	No	No	No

pitched battle (noun)	Battle of Chapultepec (noun)
a fierce battle fought in close combat between troops in predetermined positions at a chosen time and place	a pitched battle in the Mexican War that resulted in a major victory for American forces over Mexican forces at a locality south of Mexico City (1847)