The Collaborative International Dictionary of English v.0.48:

Waiter \Wait"er\, n.
   1. One who, or that which, waits; an attendant; a servant in
      attendance, esp. at table.
      [1913 Webster]

            The waiters stand in ranks; the yeomen cry,
            "Make room," as if a duke were passing by. --Swift.
      [1913 Webster]

   2. A vessel or tray on which something is carried, as dishes,
      etc.; a salver.
      [1913 Webster]

   Coast waiter. See under Coast, n.
      [1913 Webster]

WordNet (r) 3.0 (2006):

waiter
    n 1: a person whose occupation is to serve at table (as in a
         restaurant) [syn: waiter, server]
    2: a person who waits or awaits