lower floor; downstairs
Refers to the floor below the current one, or the downstairs area of a building. Antonym: 階上 (upstairs).
Antonyms: 階上
I heard a noise from downstairs.
bottom of the stairs; foot of the stairs
Specifically the area at the base of a staircase. Antonym: 階上 (top of the stairs).
Antonyms: 階上 (かいじょう)
He took off his shoes at the foot of the stairs.
この建物の階下は店舗になっている。
The lower floor of this building is used as a shop.
upper floor; upstairs · top of the stairs
Compound of 階 (floor, storey) and 下 (below, under).