湯

water heater; (domestic) boiler

large bathhouse with many different services; deluxe public bath

instantaneous water heater; on-demand water heater

Colloquial

irritable person; hot-tempered person

thin rice gruel; rice water

morning bath

taking a hot bath; bathing at hot springs

indoor bath using water from a hot-spring

parched-barley tea

ginger tea

kudzu starch gruel

soba water; water left in the pot after one has boiled soba

infusion of kudzu, cinnamon, etc., used as an antifebrile, for hangovers, etc.

well-known hot spring

hot spring

pouring hot water on oneself before entering the bathtub; hot water poured on oneself before entering the bathtub

pouring hot water on oneself repeatedly (type of hot-spring cure)

Idiomatic expression

to be comfortable; to be easy; to be relaxed; to be cosseted

an offering of tea and hot water made to Buddha or the spirit of the deceased

a tea infusion; tea and hot water

tea ceremony

yuzu bath; hot citron bath

top-grade Chinese soup stock

hot salt water

(hot) saltwater bath

hot spring (or bath) which is good for the skin

comfortably hot bath; hot spring

public bath; communal bath

lie-down bath (in a bathhouse or hot spring)