Caledonia vs geographical area

Caledonia and geographical area both are nouns.

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

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