水

water gone underground (to emerge as a spring)

water flea (Daphnia spp.)

hydrofoil

hair oil; camellia oil; rape oil

kerosene; paraffin; lamp oil

bile; gall

hydrogenation

water supply industry

river water

Buddhism

portable water vessel (for drinking or washing up)

swimming pool lane which is longer than 50 meters

hydroxyl group (radical)

water cycle; hydrologic cycle

eye lotion

Linguistics

hydronym (proper name of a body of water)

(underwater) depth gauge

diving apparatus

condensation; condensed water

spilt water; spilled water

bigfin reef squid; oval squid (Sepioteuthis lessoniana)

water jug; pitcher

fisheries science

Organization name

Burakumin rights organization (1922-1942)

Astronomy

Hydrus (constellation); the Water Snake

inland waters; territorial waters; local run-off