tarmac vs taxiway

tarmac

noun
  • The area of an airport, other than the runway, where planes park or maneuver. 

  • The driveable surface of a road. 

  • Tarmacadam. 

  • Any bituminous road surfacing material. 

verb
  • To pave with tarmacadam or a similar material. 

  • To spend time idling on a runway, usually waiting for takeoff clearance. 

taxiway

noun
  • A road or path within an airport designated for the taxiing of aircraft connecting the runways with ramps, hangars, terminals and other facilities. 

How often have the words tarmac and taxiway occurred in a corpus of books? (source: Google Ngram Viewer )