a public room, as in a hotel or airline terminal, where cocktails and other drinks are served.
Origin of cocktail lounge
First recorded in 1935–40
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
a room in a hotel, restaurant, etc, where cocktails or other alcoholic drinks are served
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012