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階下， かいか
1. lower floor, downstairs
2. bottom of the stairs, foot of the stairs
tbd
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降りる， 下りる， おりる
1. to descend (e.g. a mountain), to go down, to come down
2. to alight (e.g. from bus), to get off, to disembark, to dismount
3. to step down, to retire, to give up, to quit, to fold
4. to be granted, to be issued, to be given
5. to form (of frost, d...
下，下(山)；下，下(车、船等)；下台，辞职，退出
