[TheSpiceIsLife]

Slight correction: Around windows its architraves and reveals.

But I’m in Tasmania, some geographic variation in dialect can be expected.

Except, I’m from South Australia, so some people around here think I talk posh.

[ChoGGi]

For me the reveal is the amount of space between the window casing/trim and the frame of the window.

[TheSpiceIsLife]

I tend to agree.