Source : Webster's Revised Unabridged Dictionary (1913)

Luxury \Lux"u*ry\, n.; pl. {Luxuries}. [L. luxuria, fr. luxus:
   cf. F. luxure.]
   1. A free indulgence in costly food, dress, furniture, or
      anything expensive which gratifies the appetites or
      tastes.

            Riches expose a man to pride and luxury.
                                                  --Spectator.

   2. Anything which pleases the senses, and is also costly, or
      difficult to obtain; an expensive rarity; as, silks,
      jewels, and rare fruits are luxuries; in some countries
      ice is a great luxury.

            He cut the side of a rock for a garden, and, by
            laying on it earth, furnished out a kind of luxury
            for a hermit.                         --Addison.

   3. Lechery; lust. [Obs.] --Shak.

            Luxury is in wine and drunkenness.    --Chaucer.

   4. Luxuriance; exuberance. [Obs.] --Bacon.

   Syn: Voluptuousness; epicurism; effeminacy; sensuality;
        lasciviousness; dainty; delicacy; gratification.

Source : WordNet®

luxury
     adj : elegant and sumptuous; "a deluxe car"; "luxe
           accommodations"; "a luxury condominium" [syn: {deluxe},
            {de luxe}, {luxe}, {luxury(a)}]

luxury
     n 1: something that is an indulgence rather than a necessity
     2: the quality possessed by something that is excessively
        expensive [syn: {lavishness}, {sumptuosity}, {sumptuousness}]
     3: wealth as evidenced by sumptuous living [syn: {luxuriousness},
         {opulence}, {sumptuousness}]