Collins COBUILD Advanced Learner's English Dictionary - upstairs

1. If you go upstairs in a building, you go up a staircase towards a higher floor. He went upstairs and changed into fresh clothes... ? downstairs ADV: ADV after v 2. If something or someone is upstairs in a building, they are on a floor that is higher than the ground floor. The restaurant is upstairs and consists of a large, open room... The boys are curled asleep in the small bedroom upstairs. ? downstairs ADV: be ADV, n ADV 3. An upstairs room or object is situated on a floor of a building that is higher than the ground floor. Marsani moved into the upstairs apartment. ...an upstairs balcony. ADJ: ADJ n 4. The upstairs of a building is the floor or floors that are higher than the ground floor. Frances invited them to occupy the upstairs of her home. ? downstairs N-SING: the N