Source : Webster's Revised Unabridged Dictionary (1913)

Stunt \Stunt\, n. [Cf. {Stint} a task.]
   A feat hard to perform; an act which is striking for the
   skill, strength, or the like, required to do it; a feat.
   [Colloq.]

         An extraordinary man does three or four different
         ``stunts'' with remarkable dexterity.    --The Bookman.

         He does not try to do stunts; and, above all, he does
         not care to go in swimming.              --L. Hutton.

Stunt \Stunt\, v. t. [imp. & p. p. {Stunted}; p. pr. & vb. n.
   {Stunting}.] [See {Stint}.]
   To hinder from growing to the natural size; to prevent the
   growth of; to stint, to dwarf; as, to stunt a child; to stunt
   a plant.

         When, by a cold penury, I blast the abilities of a
         nation, and stunt the growth of its active energies,
         the ill or may do is beyond all calculation. --Burke.

Stunt \Stunt\, n.
   1. A check in growth; also, that which has been checked in
      growth; a stunted animal or thing.

   2. Specifically: A whale two years old, which, having been
      weaned, is lean, and yields but little blubber.

Source : WordNet®

stunt
     n 1: a difficult or unusual or dangerous feat; usually done to
          gain attention
     2: a creature (especially a whale) that has been prevented from
        attaining full growth

stunt
     v 1: check the growth or development of; "You will stunt your
          growth by building all these muscles"
     2: perform a stunt or stunts