downstairs
//ˌdaʊnˈstɛrz//
Adverb
1
Down the stairs; to or toward a lower floor of a building.
She went downstairs to make breakfast.
2
On or to a lower floor of a building.
She went downstairs to answer the door.
Antonym
Adjective
1
Situated on a lower floor of a building.
The downstairs bathroom is bigger than the upstairs one.
Antonym
Noun
1
The lower floor or floors of a building, especially the ground floor.
The downstairs has a kitchen and a living room.