(video games) The performing of actions or obtaining of items out of the linear order intended by the game's designers, either as a challenge or in order to skip certain sections of the game.

Used other than figuratively or idiomatically: see break, through. / (intransitive) To gain popularity. / (intransitive, sports) To penetrate the defence of the opposition.

To breach a norm against communication or against communicating a specific type of information.

(idiomatic) to inhale and subsequently exhale air / (idiomatic) to pause or rest after strenuous activity / (idiomatic) to calm down

(colloquial, of an event or of one's fortunes) To go wrong; to go downhill. / (colloquial, especially Southern US and Midwestern US, of a person) To go bad; to turn toward immorality or crime.

(pathology) A form of labored breathing and hyperventilation associated with metabolic acidosis, renal failure, and diabetes.

(idiomatic) to be relieved; to feel relief.

(graph theory) A search algorithm that begins at the root node and explores all the neighboring nodes.

Alternative spelling of breastbone

An official test to determine if someone has taken alcohol or drugs by testing a sample of their exhaled breath.