Word

lowness (of degree, value, etc.); inferiority; second volume (of two); third volume (of three)
Word

under (being in said condition or environment)
Word
した
below; down; under; younger (e.g. daughter); bottom; beneath; underneath; just after; right after; inferiority; one's inferior (i.e. one's junior); trade-in; preliminary; preparatory
Word

しも
lower reaches (of a river); bottom; lower part; lower half (of the body, esp. the privates); feces (faeces); urine; menses; end; far from the imperial palace (i.e. far from Kyoto, esp. of western Japan); dirty (e.g. dirty jokes, etc.)
Word

adv
もと
under (esp. influence or guidance)
Word

以下

已下
いか、いげ
not exceeding; and downward; ... and below; below (e.g. standard); under (e.g. a level); the below-mentioned; the following; the rest
Word

地下鉄

ちかてつ
underground train; subway
Word

下位

かい
low rank; subordinate; lower order (e.g. byte); low-end
Word

地下

ちか
basement; cellar; underground place; underground; below ground; secret; under cover; underground (railway); subway; metro
Word

下車

げしゃ
alighting (from train, bus, etc.); getting off