The Collaborative International Dictionary of English v.0.48:

Luggage \Lug"gage\, n. [From 4th Lug.]
   That which is lugged; anything cumbrous and heavy to be
   carried; especially, a traveler's trunks, baggage, etc., or
   their contents.
   [1913 Webster]

         I am gathering up my luggage, and preparing for my
         journey.                                 --Swift.
   [1913 Webster]

         What do you mean,
         To dote thus on such luggage!            --Shak.

   Syn: Plunder; baggage.
        [1913 Webster]

   Luggage van, a vehicle for carrying luggage; a railway car,
      or compartment of a car, for carrying luggage. [Eng.]

   Luggage compartment, the compartment in a train, bus or
      other vehicle designed for storage of luggage during a
      journey. Separate from the passenger compartment.
      [1913 Webster +PJC]

WordNet (r) 3.0 (2006):

luggage compartment
    n 1: compartment in an automobile that carries luggage or
         shopping or tools; "he put his golf bag in the trunk" [syn:
         luggage compartment, automobile trunk, trunk]