boil noun

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