room (division in a building) / living room (room in a house for general social and leisure activities) / Ellipsis of sala de aula (“classroom”).

(idiomatic) to entertain a guest

Superseded spelling of antessala.

cleanroom (room or environment controlled to minimize airborne particulate matter)

classroom (room in a school)

dining room (room, in a home or hotel, where meals are eaten)

lounge; waiting room (room for people to wait)

living room (room in a house used for social and leisure activities)