Lounge
Lounge may refer to:

Architecture
Lounge (British English), or lounge room (Australian English), alternate terms for the living room of a dwelling.
Lounge, a public waiting area in a hotel's lobby.
Cocktail Lounge (or simply Lounge), a style of commercial alcohol-serving bar, typically found in hotels and restaurants.
Airport lounge, or train lounge (e.g., AMTRAK's Acela Lounge), a premium waiting area for passengers
Dome lounge, a type of domed railroad passenger car that includes lounge, cafe, dining or other space on the upper level

Arts, entertainment, and media
Book cafe, or lounge
Piano bar, or lounge
Lounge music, type of easy listening music popular in the 1950s and 1960s

Fashion
Lounge jacket, also called a suit jacket or suit coat, is a jacket in classic menswear that is part of a lounge suit
Lounge suit, style of suit (clothing)

Other uses
Chaise lounge, an English language derivative  of the French term chaise longue ("long chair")
Lounge car, a railroad car selling food and beverages

See also
Lounge lizard (disambiguation)
Lounging (disambiguation)