trade route

from WordNet (r) 3.0 (2006)

trade route
    n 1: a lane at sea that is a regularly used route for vessels
         [syn: {seaway}, {sea lane}, {ship route}, {trade route}]
    2: a route followed by traders (usually in caravans)

from Moby Thesaurus II by Grady Ward, 1.0

22 Moby Thesaurus words for "trade route":
      air lane, beat, circuit, course, flight path, itinerary, line,
      orbit, path, primrose path, road, round, route, run, sea lane,
      shortcut, tour, track, traject, trajectory, trajet, walk

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