Source : Webster's Revised Unabridged Dictionary (1913)

Runway \Run"way`\, n.
   1. The channel of a stream.

   2. The beaten path made by deer or other animals in passing
      to and from their feeding grounds.

Source : WordNet®

runway
     n 1: a narrow platform extending from the stage into the audience
          in a theater or nightclub etc.
     2: a strip of level paved surface where planes can take off and
        land