flight

1a :  an act or instance of passing through the air by the use of wings the flight of a beeb :  the ability to fly flight is natural to birds

2a :  a passing through the air or through space outside the earth's atmosphere flight of an arrow the flight of a rocket to the moonb :  the distance covered in such a flightc :  swift movement

3a :  a trip made by or in an airplane or spacecraft a transatlantic flightb (1) :  a scheduled airplane trip Our flight is at noon. (2) the airplane that is making a trip They boarded flight 109.

4 :  a group of similar beings or objects flying through the air together a flight of geese

5 :  a brilliant, imaginative, or unrestrained exercise or display a flight of fancy

6a :  a continuous series of stairs from one landing or floor to another Her apartment is four flights up.b :  a series (as of terraces or conveyors) resembling a flight of stairs

7 :  a unit of the U.S. Air Force below a squadron