The Collaborative International Dictionary of English v.0.48:

Bearer \Bear"er\ (b[^a]r"[~e]r), n.
   1. One who, or that which, bears, sustains, or carries.
      "Bearers of burdens." --2 Chron. ii. 18. "The bearer of
      unhappy news." --Dryden.
      [1913 Webster]

   2. Specifically: One who assists in carrying a body to the
      grave; a pallbearer. --Milton.
      [1913 Webster]

   3. A palanquin carrier; also, a house servant. [India]
      [1913 Webster]

   4. A tree or plant yielding fruit; as, a good bearer.
      [1913 Webster]

   5. (Com.) One who holds a check, note, draft, or other order
      for the payment of money; as, pay to bearer.
      [1913 Webster]

   6. (Print.) A strip of reglet or other furniture to bear off
      the impression from a blank page; also, a type or
      type-high piece of metal interspersed in blank parts to
      support the plate when it is shaved.
      [1913 Webster]

WordNet (r) 3.0 (2006):

bearer
    n 1: someone whose employment involves carrying something; "the
         bonds were transmitted by carrier" [syn: carrier,
         bearer, toter]
    2: a messenger who bears or presents; "a bearer of good tidings"
    3: one of the mourners carrying the coffin at a funeral [syn:
       pallbearer, bearer]
    4: the person who is in possession of a check or note or bond or
       document of title that is endorsed to him or to whoever holds
       it; "the bond was marked `payable to bearer'" [syn: holder,
       bearer]