Definition of "corridor"

corridor

/ˈkɒɹɪdɔː/

noun
plural corridors
1. A narrow hall or passage with rooms leading off it, as in a building or in a railway carriage.
  Quotations
  There is an hour or two, after the passengers have embarked, which is disquieting and fussy. […] Stewards, carrying cabin trunks, swarm in the corridors. Passengers wander restlessly about or hurry, with futile energy, from place to place.
  1915, G[eorge] A. Birmingham [pseudonym; James Owen Hannay], chapter I, in Gossamer, New York, N.Y.: George H. Doran Company
  Eldridge closed the despatch-case with a snap and, rising briskly, walked down the corridor to his solitary table in the dining-car.
  1931, Francis Beeding, Death Walks in Eastrepps, chapter 1/1
2. A restricted tract of land that allows passage between two places.
3. (military, historical, rare) The covered way lying round the whole compass of the fortifications of a place.
4. Airspace restricted for the passage of aircraft.
5. The land near an important road, river, railway line