rollback

1. A return to a prior state by undoing some operation, especially of policy or price changes. (countable, uncountable)
2. A withdrawal of military forces. (countable, uncountable)
3. An operation which returns a database, or group of records in a database, to a previous state (normally to the previous commit point). (countable, uncountable) · Near-synonyms: reversion, revert (sometimes synonymous)
4. The situation where a rollercoaster fails to reach the top of a hill and instead rolls backward. (countable, uncountable)
5. A form of flatbed truck adapted or designed specifically to carry other vehicles, for use in recovery (wrecking, salvage) or for transporting. (countable, informal, uncountable) · Near-synonym: tow truck (loosely often synonymous)
6. The strategy of forcing a change in the major policies of a state, usually by replacing its ruling regime, or by totally annihilating an enemy's armed forces and occupying the country, as was done in World War II to Italy, Germany, and Japan. (countable, uncountable)
7. An uncommanded reduction in the thrust of a jet engine. (countable, uncountable)

Plural rollbacks