roll something ↔ back phrasal verb (
see also roll)
1. to reduce the influence or power of a law, system, government etc:
a threat to roll back the legislation of the past 12 years2. especially American English to reduce a price, cost etc:
the administration’s promise to roll back taxes ⇒
rollback3. to force your opponents in a war to move back from their position
4. roll back the years British English to make someone remember something from the past:
Looking at those old photos really rolled back the years. [TahlilGaran] Dictionary of Contemporary English ▲