1. A forward gear with a gear ratio that gives the greatest vehicle velocity for a given engine speed
   "He shifted into high gear as he merged onto the highway";
   - high

Derived forms: high gears

Type of: gear, gear mechanism

Part of: auto [informal], autocar [archaic], automobile [N. Amer], car, motor [Brit, informal], motorcar, wheel [informal], whip [US, informal]