WordNet records no synonym and no antonym for nova scotia. It is the only member of each of its synsets, which is common for technical, taxonomic and single-sense vocabulary — there is no other English word that means the same thing. The broader and narrower terms below are the useful relations in that case.
Counts are distinct word forms across every sense. A synonym that appears under three senses is counted once here and shown three times below, under each sense it belongs to.
a peninsula in eastern Canada between the Bay of Fundy and the Saint Lawrence River
the Canadian province in the Maritimes consisting of the Nova Scotia peninsula and Cape Breton Island; French settlers who called the area Acadia were exiled to Louisiana by the British in the 1750s and their descendants are know as Cajuns
Synonyms, antonyms and the broader and narrower relations for nova scotia come from Princeton University’s WordNet. Full sources and licences.