Source : Webster's Revised Unabridged Dictionary (1913)

Feat \Feat\, n. [OE. fet, OF. fet, fait, F. fait, factum, fr. L.
   facere, factum, to make or do. Cf. {Fact}, {Feasible}, {Do}.]
   1. An act; a deed; an exploit.

            The warlike feats I have done.        --Shak.

   2. A striking act of strength, skill, or cunning; a trick;
      as, feats of horsemanship, or of dexterity.

Feat \Feat\, v. t.
   To form; to fashion. [Obs.]

         To the more mature, A glass that feated them. --Shak.

Feat \Feat\, a. [Compar. {Feater}; superl. {Featest}.] [F. fait
   made, shaped, fit, p. p. of faire to make or do. See {Feat},
   n.]
   Dexterous in movements or service; skillful; neat; nice;
   pretty. [Archaic]

         Never master had a page . . . so feat.   --Shak.

         And look how well my garments sit upon me -- Much
         feater than before.                      --Shak.

Source : WordNet®

feat
     n : a notable achievement; "he performed a great deed"; "the
         book was her finest effort" [syn: {deed}, {effort}, {exploit}]