Boil

kiehumispiste

(point at which fluid begins to change to a vapour)

paise

(accumulation of pus)

keittää

(cook in boiling water)

kiehua

((intransitive) begin to turn into a gas)

kiehuttaa

((transitive) heat (a liquid) until it begins to turn into a gas)

paistua

(colloquial: of a person, to be uncomfortably hot)