down the stairs; on or to a floor of a house or building lower than the one you are on, especially the one at ground level She rushed downstairs and burst into the kitchen. Wait downstairs in the hall. opposite upstairs
NAmE//ˈdaʊnstɛrzæpːdown̩stairs//
[only before noun] a downstairs bathroomSee downstairs in the Oxford Advanced Learner's DictionaryCheck pronunciation: downstairs