I swear

An exclamation of surprise or amazement.

An exclamation of surprise or amazement.

Used other than figuratively or idiomatically: see dragon, tooth. / (military) Square-pyramidal fortifications of reinforced concrete to impede the movement of tanks and mechanised infantry.

(idiomatic) barely; closely; by a narrow margin; with nothing to spare.

(colloquial) To become enthusiastically involved in.

(idiomatic) To begin; to gain early experience.

(of an animal) To show its teeth as a sign of aggression. / (idiomatic, by extension) To show aggression.

To clench one's teeth together tightly because of pain, anger, frustration, or self-assurance. / (idiomatic) To face up to a difficult or disagreeable situation and deal with it.

To clean one's teeth, especially by using a toothbrush and toothpaste.