Source : Webster's Revised Unabridged Dictionary (1913)

Follower \Fol"low*er\, n. [OE. folwere, AS. folgere.]
   1. One who follows; a pursuer; an attendant; a disciple; a
      dependent associate; a retainer.

   2. A sweetheart; a beau. [Colloq.] --A. Trollope.

   3. (Steam Engine)
      (a) The removable flange, or cover, of a piston. See
          Illust. of {Piston}.
      (b) A gland. See Illust. of {Stuffing box}.

   4. (Mach.) The part of a machine that receives motion from
      another part. See {Driver}.

   5. Among law stationers, a sheet of parchment or paper which
      is added to the first sheet of an indenture or other deed.

   Syn: Imitator; copier; disciple; adherent; partisan;
        dependent; attendant.

Source : WordNet®

follower
     n 1: an ordinary person who accepts the leadership of another
          [ant: {leader}]
     2: someone who travels behind or pursues another