Hedjaz vs geographic region

Hedjaz and geographic region both are nouns.

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

Hedjaz (noun)	geographic region (noun)
a coastal region of the western Arabian Peninsula bordering on the Red Sea; includes both Mecca and Medina; formerly an independent kingdom until it united with Nejd to form the Kingdom of Saudi Arabia	a demarcated area of the Earth