downstairs
adverbUK /ˌdaʊnˈsteəz/
US /ˌdaʊnˈsterz/
on or to a lower floor of a building.
She ran downstairs to answer the door.
RELATED WORDS
OTHER MEANINGS
2. the lower floor or floors of a building.
The downstairs is used as a guest apartment.
3. situated on a lower floor.
They moved into a downstairs bedroom.
4. the area at the bottom of a staircase.
He waited for her in the downstairs hallway.