Jena vs pitched battle

Jena and pitched battle both are nouns.

Word	Noun	Adjective	Verb	Adverb
Jena	Yes	No	No	No
pitched battle	Yes	No	No	No

Jena (noun)	pitched battle (noun)
the battle in 1806 in which Napoleon decisively defeated the Prussians	a fierce battle fought in close combat between troops in predetermined positions at a chosen time and place