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

伊達男[dateotoko] dandy
一男[ichinan] boy
下女下男[gejogenan] servants
下男[genan] manservant
寡男[yamoo] widower

間男[maotoko] married woman's secret lover
既婚男性[kikondansei] married man
貴男[anata] you (referring to someone of equal or lower status)
男気[otokogi] chivalrous spirit
好男子[koudanshi] handsome man