The Collaborative International Dictionary of English v.0.48:

Travel \Trav"el\, v. i. [imp. & p. p. Traveledor Travelled;
   p. pr. & vb. n. Traveling or Travelling.] [Properly, to
   labor, and the same word as travail.]
   1. To labor; to travail. [Obsoles.] --Hooker.
      [1913 Webster]

   2. To go or march on foot; to walk; as, to travel over the
      city, or through the streets.
      [1913 Webster]

   3. To pass by riding, or in any manner, to a distant place,
      or to many places; to journey; as, a man travels for his
      health; he is traveling in California.
      [1913 Webster]

   4. To pass; to go; to move.
      [1913 Webster]

            Time travels in divers paces with divers persons.
                                                  --Shak.
      [1913 Webster]

WordNet (r) 3.0 (2006):

traveling
    n 1: the act of going from one place to another; "he enjoyed
         selling but he hated the travel" [syn: travel,
         traveling, travelling]

Moby Thesaurus II by Grady Ward, 1.0:

58 Moby Thesaurus words for "traveling":
   active, ambulant, ambulative, ambulatory, circuit-riding,
   commutation, course, crossing, driving, expeditionary,
   globe-girdling, globe-trotting, going, impelling, in motion,
   itinerant, itinerary, journeying, locomotion, locomotive, mobile,
   motile, motion, motivational, motive, motor, movement, moving,
   mundivagant, on tour, passage, passing, pedestrian, perambulating,
   perambulatory, peregrinative, peregrine, peripatetic, pilgrimlike,
   progress, progressing, propellant, propelling, stirring, strolling,
   touring, tourism, touristic, touristry, touristy, traject, trajet,
   transit, transitional, travel, trekking, walking, wayfaring