(smoking) a hookah; a waterpipe

(history) a 律令 (ritsuryō) position in the 後宮 (Kōkyū, “Seraglio”) that manages water and ice

(history) a 律令 (ritsuryō) position in the 後宮 (Kōkyū, “Seraglio”) that manages water and ice / Alternative spelling of 主水司

the Wei River

spirogyra

(chemistry) hydration (incorporation of water molecules into another compound)

subterranean river / water from a subterranean river

range / orbit / sphere

the above / the top (position or direction) / the surface of / superior in skill, age, level, etc.

in addition; furthermore / on top of (which)