沸 - seethe, boil, ferment

boiling; seething

water heater; water boiler

to grow hot (e.g. water); to boil

to boil; to heat (a liquid); to prepare (a bath, hot drink)

boiling

to bubble over; to boil over

scalder

wasting one's efforts; rendering one's efforts futile

to get angry; to take offense (offence); to be furious

what a joke!; don't make me laugh!

hot water (esp. cold mineral spring water heated up at the right temperature for bathing)

simmer; bubble out; flow out