said of a fluid: to reach a temperature, when heated, at which it bubbles and changes into vapour
said of a vessel: to contain a fluid that is boiling
The kettle's boiling
said of disturbed water: to bubble or foam violently; to churn
to become furious
I was boiling with rage
to undergo the action of a boiling liquid
The eggs should boil for at least four minutes
to subject (food, etc) to the action of a boiling liquid
I'll boil some eggs
to heat (a kettle, etc) till its contents boil
[Middle English boilen via Old French boillir from Latin bullire to bubble, from bulla bubble]