geographical area vs Iberia

geographical area and Iberia both are nouns.

Word	Noun	Adjective	Verb	Adverb
geographical area	Yes	No	No	No
Iberia	Yes	No	No	No

geographical area (noun)	Iberia (noun)
a demarcated area of the Earth	a peninsula in southwestern Europe
	an ancient geographical region to the south of the Caucasus Mountains that corresponded approximately to the present-day Georgia