Bannockburn vs pitched battle

Bannockburn and pitched battle both are nouns.

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

Bannockburn (noun)	pitched battle (noun)
a battle in which the Scots under Robert the Bruce defeated the English and assured the independence of Scotland	a fierce battle fought in close combat between troops in predetermined positions at a chosen time and place