nav·i·ga·tor /ˈnævəˌgetɚ/
  航海家
  Nav·i·ga·tor n. One who navigates or sails; esp., one who direct the course of a ship, or one who is skillful in the art of navigation; also, a book which teaches the art of navigation; as, Bowditch's Navigator.
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  navigator
       n 1: the ship's officer in charge of navigation [syn: sailing
            master]
       2: the member of an aircrew who is responsible for the
          aircraft's course
       3: in earlier times, a person who explored by ship