Source : Webster's Revised Unabridged Dictionary (1913)

Coachman \Coach"man\, n.; pl. {Coachmen}.
   1. A man whose business is to drive a coach or carriage.

   2. (Zo["o]l.) A tropical fish of the Atlantic ocean ({Dutes
      auriga}); -- called also {charioteer}. The name refers to
      a long, lashlike spine of the dorsal fin.