trav·el·er or trav·el·ler 
(trăvəl-ər, trăvlər)
(trăvəl-ər, trăvlər)n.
1. One who travels or has traveled, as to distant places.
2. often traveller Chiefly British
a. A traveling salesperson.
b. A member of any of various groups of traditionally itinerant people living especially in Scotland and Ireland.
3. Nautical
a. A metal ring that moves freely back and forth on a rope, rod, or spar.
b. The rope, rod, or spar on which such a ring moves.
c. A carriage that slides on a transverse track near the stern of a sailboat, providing an adjustable point of attachment for the mainsheet block.