Added 10 October 2026 caledonia noun Categories: PlacesRare Words noun ! Definition from WordNet 3.1, Princeton University. More about caledonia at Wordnik → Where our words come from → The geographical area (in Roman times) to the north of the Antonine Wall; now a poetic name for Scotland. Related Words: caledonianterritoryzealandalbanyalbynscotiaalbainnscot.highlandslochalshcaithness Back to today's word