Available Definitions:
1) n. - A free indulgence in costly food, dress, furniture, or anything expensive which gratifies the appetites or tastes.
2) n. - 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.
3) n. - Lechery; lust.
4) n. - Luxuriance; exuberance.