rainwater; rain water
Refers to rainwater, especially when collected or used as a resource. Often appears in contexts like agriculture, gardening, or traditional water use.
I collect rainwater and water the field with it.
この地域では天水に頼った農業が行われている。
In this region, agriculture relies on rainwater.
rain barrel; rainwater tank
Conflict (hexagram 6 of the I Ching)
Compound of 天 (heaven, sky) and 水 (water), literally 'heavenly water'. The exact historical derivation is uncertain, but the spelling is conventionally associated with the meaning of rainwater.