geographic region vs Philistia

geographic region and Philistia both are nouns.

Word	Noun	Adjective	Verb	Adverb
geographic region	Yes	No	No	No
Philistia	Yes	No	No	No

geographic region (noun)	Philistia (noun)
a demarcated area of the Earth	an ancient region on the coast of southwestern Palestine that was strategically located on a trade route between Syria and Egypt; important in biblical times