In extended use. The action or an act of re-entering something, such as a position, group, procedure, course of action, way of life, etc.; this…

A movement towards the reversal of an existing tendency or set of circumstances, esp. in politics. Also (and now usually) as a mass noun: advocacy…

in immaterial sense, e.g. a shifting or transfer of responsibility, etc.

Reversion to a former state, condition, or practice; an instance of this.

(a) the back of a photographic camera, carrying the sensitized plate, arranged so as to be ‘swung’ or turned on a hinge or pivot into any required…

A turn-round; a sudden change of policy or party. U.S.

A reversion to something.

A return to a style, fashion, etc., from the past; a person or thing suggestive of a former time.

a change to a contrastive state or opinion.

figurative. A complete reversal of policy, opinion, political or intellectual position, attitude, etc.; (sometimes more generally) a thoroughgoing…

figurative. A marked change of direction, esp. an abrupt or unexpected move or turn of events.

a striking change or reversal of direction (in quots., figurative).

= turn-round, n. 2.

The reversal of a trend, a change to an opposite direction, opinion, etc.

A U-turn.

A switching or turning round; an alternation or exchange; a reversal of position, opinion, etc.; = turn-round, n. 2.