a gallery or passage connecting parts of a building; hallway.

a passage into which several rooms or apartments open.

a passageway in a passenger ship or railroad car permitting access to separate cabins or compartments.

a narrow tract of land forming a passageway, as one connecting two major cities or one belonging to an inland country and affording an outlet to the sea

the Polish Corridor.

a usually densely populated region characterized by one or more well-traveled routes used by railroad, airline, or other carriers

The Northeast corridor extends from Washington, D.C., to Boston.

Aeronautics . a restricted path along which an aircraft must travel to avoid hostile action, other air traffic, etc.

Aerospace . a carefully calculated path through the atmosphere along which a space vehicle must travel after launch or during reentry in order to attain a desired orbit, to avoid severe acceleration and deceleration, or to minimize aerodynamic heating.

noun

aisle , couloir , entrance hall , entranceway , foyer , hall , ingress , lobby , passage , passageway , areaway , gallery , hallway , path