pitched battle vs Battle of Fredericksburg

pitched battle and Battle of Fredericksburg both are nouns.

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

pitched battle (noun)	Battle of Fredericksburg (noun)
a fierce battle fought in close combat between troops in predetermined positions at a chosen time and place	an important battle in the American Civil War (1862); the Union Army under A. E. Burnside was defeated by the Confederate Army under Robert E. Lee