'Luxury' definitions:

Definition of 'luxury'

(from WordNet)
noun
Something that is an indulgence rather than a necessity
noun
The quality possessed by something that is excessively expensive [syn: lavishness, luxury, sumptuosity, sumptuousness]
noun
Wealth as evidenced by sumptuous living [syn: luxury, luxuriousness, opulence, sumptuousness]

Definition of 'Luxury'

From: GCIDE
  • 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. [1913 Webster]
  • Riches expose a man to pride and luxury. --Spectator. [1913 Webster]
  • 2. Anything which pleases the senses, is not necessary for life, 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. Contrasted to necessity. [1913 Webster]
  • 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. [1913 Webster]
  • 3. Lechery; lust. [Obs.] --Shak. [1913 Webster]
  • Luxury is in wine and drunkenness. --Chaucer. [1913 Webster]
  • 4. Luxuriance; exuberance. [Obs.] --Bacon.
  • Syn: Voluptuousness; epicurism; effeminacy; sensuality; lasciviousness; dainty; delicacy; gratification. [1913 Webster]

Synonyms of 'luxury'

From: Moby Thesaurus