1. a gear in a motor vehicle that allows the engine to operate at reduced speed for a given road speed, improving fuel efficiency
Usage: automotive
2. a state of intense or excessive activity

1. to drive a vehicle too hard or beyond safe limits
2. to work or operate at an excessive rate

Examples

• The car’s overdrive kicked in on the highway, improving gas mileage.
• She shifted into overdrive to finish the project before the deadline.
• His metabolism went into overdrive after starting the new exercise routine.
• Don’t overdrive the engine or you’ll damage it.
• The team went into overdrive preparing for the championship game.
• The air conditioning was in overdrive during the heat wave.
• He tends to overdrive himself when stressed about work.