(transitive, idiomatic) Have a controlling influence over.

The branch of medicine concerned with tumors, including study of their development, diagnosis, treatment, and prevention.

(figuratively, idiomatic, often with the verb go) In a risky, precarious, daring, or uncompromising position, especially one outside of the mainstream; vulnerable.

A mirror reflecting images on one side and transparent on the other, often used by the police during interrogations.

(idiomatic) On a very tight budget; with few resources or little money.

(idiomatic) A person or persons considered to be very sexually attractive.

Used other than figuratively or idiomatically: see speak, for. To provide an opinion only on one's own behalf. / (idiomatic, imperative) Expressing disagreement with an opinion expressed by another.

(travel) A ticket granting permission to travel to a place but not return. / (figuratively) A course of action from which there is no return.

(colloquial) To become enthusiastically involved in.

(informal) To agree by shaking hands; to close a deal.