geographic area vs Caledonia

geographic area and Caledonia both are nouns.

Word	Noun	Adjective	Verb	Adverb
geographic area	Yes	No	No	No
Caledonia	Yes	No	No	No

geographic area (noun)	Caledonia (noun)
a demarcated area of the Earth	the geographical area (in Roman times) to the north of the Antonine Wall; now a poetic name for Scotland