御湯[oyu] hot water
塩湯[shioyu] hot salt water (incl. bath)
温湯[ontou] comfortably hot bath
下湯[shimoyu] sitz bath
そと湯[sotoyu] open air bath (in an inn, onsen, etc.)

給湯[kyuutou] hot-water supply
給湯器[kyuutouki] hot-water heater
腰湯[koshiyu] sitting bath
重湯[omoyu] thin rice gruel
出で湯[ideyu] hot spring

茹でる[yuderu] to boil
茹で蛸[yudetako] octopus (boiled)
茹る[yudaru] to boil
釜茹で[kamayude] boiling in an iron pot
固茹で[katayude] hard-boiled

固茹で卵[katayudetamago] hard-boiled egg
茹で卵[yudetamago] boiled egg
生茹で[namayude] half-boiled
茹がく[yugaku] to parboil
茹で麺[yudemen] boiled noodles