Definition
A defined rectangular area on a land airport prepared for the landing and takeoff of aircraft. Runways are identified by a number that reflects their magnetic heading rounded to the nearest ten degrees, with the final zero dropped (e.g., Runway 27 points roughly 270° magnetic). When parallel runways exist at the same airport, letters L, C, or R are added to distinguish left, center, and right.
Plain English
The strip of pavement (or other prepared surface) where aircraft take off and land. Each runway has a number based on the compass direction it points.
Context Anchor
Seen on instrument procedure charts, airport diagrams, airport signs, and clearances, usually followed by a runway number such as RWY 27.
Derivation
Runway combines “run” and “way,” meaning a path for movement. In aviation, it became the prepared path an aircraft uses for its takeoff or landing run.
Why Pilots Care
Runway identification has to be unambiguous. Lining up on, taking off from, or landing on the wrong runway is a serious safety event. The numbering system lets pilots cross-check the runway against their heading indicator before committing to the takeoff or landing roll.
Intuition Check
A runway is not just any open paved area at an airport. In aviation, a runway is the specific prepared area assigned for takeoffs and landings.
Example Sentence 1
Cessna 12345, cleared for takeoff Runway 27L.
Example Sentence 2
After landing on RWY 27, the tower instructed us to hold short of the intersecting runway.