The Collaborative International Dictionary of English v.0.48:

Traveler \Trav"el*er\, n. [Written also traveler.]
   1. One who travels; one who has traveled much.
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   2. A commercial agent who travels for the purpose of
      receiving orders for merchants, making collections, etc.
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   3. (Mach.) A traveling crane. See under Crane.
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   4. (Spinning) The metal loop which travels around the ring
      surrounding the bobbin, in a ring spinner.
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   5. (Naut.) An iron encircling a rope, bar, spar, or the like,
      and sliding thereon.
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   Traveler's joy (Bot.), the Clematis vitalba, a climbing
      plant with white flowers.

   Traveler's tree. (Bot.) See Ravenala.
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