Undoubtedly common usage, especially in the pop media, has regrettably shifted towards the North American trends, as with so many words. In Australia there's a

Undoubtedly common usage, especially in the pop media, has regrettably shifted towards the North American trends, as with so many words. In Australia there's a move away from prison/jail/gaol and towards 'corrective/correctional/detention facility / centre' presumably to make the places sound more aligned with their political or social intent. However each of the Australian state's active legislation still refers to them as gaols.