fleet captain

from The Collaborative International Dictionary of English v.0.48
Fleet \Fleet\, n. [OE. flete, fleote, AS. fle['o]t ship, fr.
   fle['o]tan to float, swim. See {Fleet}, v. i. and cf.
   {Float}.]
   A number of vessels in company, especially war vessels; also,
   the collective naval force of a country, etc.
   [1913 Webster]

   {Fleet captain}, the senior aid of the admiral of a fleet,
      when a captain. --Ham. Nav. Encyc.
      [1913 Webster]
    

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