Third-person singular simple present indicative form of turn back

To take turns.

(intransitive) Of two or more people, to do the same thing one after another, taking one another's place alternately.

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.