what is nunavut
By Susan Munroe. Definition: Nunavut is one of the three territories and ten provinces that make up Canada. Nunavut became a territory of Canada in 1999, formed from the eastern region of the mainland Northwest Territories and most of the Arctic Archipelago.Origin of the Name Nunavut: The name for the territory Nunavut is an Inuktitut word meaning our land..See Also:1  Nunavut Facts.unavut became a territory of Canada in 1999, formed from the eastern region of the mainland Northwest Territories and most of the Arctic Archipelago. Origin of the Name Nunavut: The name for the territory Nunavut is an Inuktitut word meaning our land.. See Also: 1  Nunavut Facts.