rollback
- 01 B2 Upper Intermediate
n.the act of changing a rule or price back to how it was before.
n.the reversal of a policy, regulation, or price change to a previous state.
Simple“The supermarket announced a rollback on milk prices to help families with rising costs.”
In context“Environmental groups protested the government's proposed rollback of clean water regulations, fearing a return to higher pollution levels.”
Antonyms - 02 C1 Advanced
n.returning a computer system or database to an earlier, safe version after an error.
n.the operation of restoring a database or software system to a previous consistent state, typically after a failed transaction or update.
Simple“The system crash forced a rollback to the backup created last night.”
In context“The DevOps team initiated an immediate rollback of the latest deployment after the monitoring tools detected a critical memory leak in production.”
- 03 C2 Proficiency
n.a sudden, unplanned drop in power from a jet engine.
n.an uncommanded reduction in the thrust of a jet engine, often resulting from a technical malfunction.
Simple“The pilot noticed an engine rollback during the climb and decided to return to the airport.”
In context“Investigators determined that the crash was caused by a dual-engine rollback triggered by ice crystals entering the fuel system.”
Synonymspower lossdeceleration - 04 B2 Upper Intermediate
v.to change something back to an earlier version or lower level.
v.to restore a system, price, or regulation to a previous state. Transitive — requires a direct object.
Simple“The company decided to rollback the new software update because it was too slow.”
In context“The administration plans to rollback several trade tariffs in an effort to ease diplomatic tensions with neighboring countries.”
The noun is a deverbal from roll back. The verb is a back-formation from the noun despite being redundant to roll back.
Etymology adapted from Wiktionary, available under CC BY-SA 4.0.