HalifaxPronunciation: /ˈhalɪfaks/Definition of Halifax 1the capital of Nova Scotia, Canada; population 372,679 (2006). It is Canada’s principal ice-free port on the Atlantic coast. [named after George Montagu Dunk (1716–71), the second earl of Halifax] 2a town in West Yorkshire, northern England, on the River Calder; population 76,000 (est. 2009). Halifax in other Oxford dictionaries Definition of Halifax in the US English dictionary