(European politics) The group of European countries that have signed the Schengen Agreement, abolishing border controls between each other.

A place built alongside a limited-access road where one can stop to buy fuel, refreshments, and so on.

(military, of devices, typically weapons) Intended to prevent an adversary from occupying or traversing a certain area of land.

A place to gather in preparation.

(television) The area of a television image that is expected to be viewable on all television screens, including old ones that typically crop the borders of the image.

plural of area rug

(geometry) The total area on the surface of an object. / (computing) The total resources of a system that are accessible from the outside world and thus might be attacked.

A piece of land or a room that is designed for the use of multiple visitors to or inhabitants of a place.

(air traffic control) an airspace within which it is dangerous for aircraft to fly.

(idiomatic) An area intermediate between two mutually exclusive states or categories, where the border between the two is fuzzy.