The Collaborative International Dictionary of English v.0.48:

Kingfish \King"fish`\ (k[i^]ng"f[i^]sh`), n. (Zool.)
   (a) An American marine food fish of the genus Menticirrus,
       especially Menticirrus saxatilis, or Menticirrus
       nebulosos, of the Atlantic coast; -- called also
       whiting, surf whiting, and barb.
   (b) The opah.
   (c) The common cero; also, the spotted cero. See Cero.
   (d) The queenfish.
       [1913 Webster]