1 the boil state of boiling
VERB + BOIL come to Just before the milk comes to the boil, turn down the heat. | bring sth to Bring the soup to the boil, then simmer for five minutes. | go off (usually figurative) He played brilliantly for the first set but then went rather off the boil.
2 infected spot
VERB + BOIL burst, lance The doctor lanced the boil.
BOIL + VERB erupt A boil had erupted on his neck. | burst
ADV. rapidly Boil the beans rapidly for ten minutes.
VERB + BOIL put sth on to I'll put the kettle on to boil.