n.1 a passage from which doors lead into rooms (orig. an outside passage connecting parts of a building, now usu. a main passage in a large building).
2 a passage in a railway carriage from which doors lead into compartments.
3 a strip of the territory of one State passing through that of another, esp. securing access to the sea.
4 a route to which aircraft are restricted, esp. over a foreign country.
Phrases and idioms:
corridors of power places where covert influence is said to be exerted in government.
Etymology: F f. It. corridore corridor for corridojo running-place f. correre run, by confusion with corridore runner