perimeter

Coast Guard evacuated the terminal and established a safety perimeter, while the L.A.

Firefighters continued suppression efforts during the day on Jan. 1, wetting down areas within the fire perimeter.

Halfway across the buoyed perimeter of the swim area I climbed up on the wooden float, like the beaches of my childhood.

That final stage would be a "security perimeter" that would "remain until Gaza is properly secure from any resurgent terror threat".

It looks like a spaceship has landed on the North Yorkshire moors, surrounded by sheep, an electrified perimeter fence and razor wire.