1. a spot that is open late at night and that provides entertainment (as singers or dancers) as well as dancing and food and drink
don't expect a good meal at a cabaret|the gossip columnist got his information by visiting nightclubs every night|he played the drums at a jazz club
2. a series of acts at a night club
3. A tavern; a house where liquors are retailed.
4. In the United States, a café or restaurant where the guests are entertained by performers who dance or sing on the floor between the tables, after the practice of a certain class of French taverns; hence, an entertainment of this nature.