pitched battle vs First Battle of Bull Run

pitched battle and First Battle of Bull Run both are nouns.

Word	Noun	Adjective	Verb	Adverb
pitched battle	Yes	No	No	No
First Battle of Bull Run	Yes	No	No	No

pitched battle (noun)	First Battle of Bull Run (noun)
a fierce battle fought in close combat between troops in predetermined positions at a chosen time and place	either of two battles during the American Civil War (1861 and 1862); Confederate forces defeated the Federal army in both battles