The Collaborative International Dictionary of English v.0.48:

Sailor \Sail"or\, n.
   One who follows the business of navigating ships or other
   vessels; one who understands the practical management of
   ships; one of the crew of a vessel; a mariner; a common
   seaman.
   [1913 Webster]

   Syn: Mariner; seaman; seafarer.
        [1913 Webster]

   Sailor's choice. (Zool.)
   (a) An excellent marine food fish (Diplodus rhomboides,
       syn. Lagodon rhomboides) of the Southern United States;
       -- called also porgy, squirrel fish, yellowtail,
       and salt-water bream.
   (b) A species of grunt (Orthopristis chrysopterus syn.
       Pomadasys chrysopterus), an excellent food fish common
       on the southern coasts of the United States; -- called
       also hogfish, and pigfish.
       [1913 Webster]

WordNet (r) 3.0 (2006):

sailor
    n 1: any member of a ship's crew [syn: sailor, crewman]
    2: a serviceman in the navy [syn: bluejacket, navy man,
       sailor, sailor boy]
    3: a stiff hat made of straw with a flat crown [syn: boater,
       leghorn, Panama, Panama hat, sailor, skimmer,
       straw hat]