lounge
n. countablen. a comfortable room in a house or public building where you can sit and relax. In a home, it is often the place where you watch TV or talk with friends.
n. a public room in an establishment such as a hotel, airport, or club, designed for waiting or relaxation. In domestic British English, it refers to the primary living area of a private residence.
We spent the evening watching a movie in the lounge.
The airport lounge offers free snacks and comfortable chairs for passengers waiting for their flights.
While the formal dining room was reserved for special occasions, the family spent most of their time in the sun-drenched lounge overlooking the garden.
Commonly used in British English to mean 'living room'; in American English, it more frequently refers to a public bar or waiting area.