Source : Webster's Revised Unabridged Dictionary (1913)

Mariner \Mar"i*ner\, n. [F. marinier, LL. marinarius. See
   {Marine}.]
   One whose occupation is to assist in navigating ships; a
   seaman or sailor. --Chaucer.

   {Mariner's compass}. See under {Compass}.

Source : WordNet®

mariner
     n : a man who serves as a sailor [syn: {seaman}, {tar}, {Jack-tar},
          {Jack}, {old salt}, {seafarer}, {gob}, {sea dog}]