DOWNSTAIRS

[adverb], [adjective] [not gradable], [noun] - (on or to) a lower floor of a building, esp. the ground floor, or down the stairsWould you mind going downstairs and seeing who rang the doorbell?There's a man downstairs who wants to come up and see you.There's a downstairs bathroom as well as the one on this floor.We live in the top half of the house but the downstairs is for sale.Compare upstairs.