top gear
"Top gear" originally refers to the highest gear in a vehicle but is also used metaphorically to describe peak performance or activity.
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Definition
B2General
(informal, figurative)A state of maximum efficiency, performance, or activity.
Example
- The team went into top gear to meet the project deadline.
- Her business is now operating in top gear.
B2Automotive
(technical)The highest gear in a vehicle's transmission, enabling the vehicle to travel at maximum speed with minimal engine effort.
Example
- Once on the open road, he shifted into top gear to save fuel.