red zone

An area of a street where the curb has been painted red, indicating that stopping, standing or parking is prohibited at that spot (except, in some places, for buses).

The area extending twenty yards from the end zone, where a team in possession of the ball is expected to score.

Any other area so classified.

The zone of emotional regulation that violent emotions like anger belong in.

(New-Zealand) To categorize as too damaged to repair, and requiring the owners to vacate (a property).