(intransitive) To reverse direction and retrace one's steps. / (transitive) To cause to reverse direction and retrace one's steps. / To return to a previous state of being.

(intransitive) To rotate the body or head so as not to face someone or something. / (intransitive) To bend or turn from a fixed course. / (transitive) To refuse to admit someone.

The unit of magnetomotive force.

(idiomatic) An expression which is worded in a distinctive way, especially one which is particularly memorable or artful.

Alternative letter-case form of U-turn

(idiomatic, Britain) A humorous, disparaging term for the appointment of a person by rotation or promotion, on the basis of length of service (it being that person's "turn") rather than merit or level of qualification.

(intransitive, now historical) To capture a turtle by turning it onto its back. / (intransitive) Especially of a boat or ship, or some other vehicle: to turn upside down.

(intransitive, military) To turn to face the opposite direction.

(Britain, military) Of a formation of soldiers, to reverse the direction in which they are facing; an about face. / (Britain, figuratively, idiomatic) A complete change of opinion, direction, etc.

(curling) A shot in which the handle of the stone is rotated away from the body.