As a Noun: 1. A long, comfortable seat with a back and arm rests, which two or more people can sit on. English = sofa, couch. British English = settee. Australian English = lounge. 2. A large comfortable chair which has a support on each side for your arms. English = armchair, lounge chair. 3. A room in a house, hotel, or club where people sit and relax. English = lounge. As a Verb or Adjective: 1. To sit on a lounge or armchair. English = lounge.