Source : Webster's Revised Unabridged Dictionary (1913)

Pop \Pop\, n. [Of imitative origin. Cf. {Poop}.]
   1. A small, sharp, quick explosive sound or report; as, to go
      off with a pop. --Addison.

   2. An unintoxicating beverage which expels the cork with a
      pop from the bottle containing it; as, ginger pop; lemon
      pop, etc. --Hood.

   3. (Zo["o]l.) The European redwing. [Prov. Eng.]

   {Pop corn}.
      (a) Corn, or maize, of peculiar excellence for popping;
          especially, a kind the grains of which are small and
          compact.
      (b) Popped corn; which has been popped.