WordWeb Online

1. Drive or work too hard
   "Overdriving people often suffer stress"
    
2. Make use of too often or too extensively
   - overuse, overutilize, overutilise [Brit]

1. The state of high or excessive activity or productivity or concentration
   "Troops are ready to go into overdrive as soon as the signal is given"; "Melissa's brain was in overdrive"
    
2. A high gear used at high speeds to maintain the driving speed with less output power

Derived forms: overdrives, overdrove, overdriving, overdriven

Type of: action, activeness, activity, apply, employ, exploit, high, high gear, overwork, use, utilise [Brit], utilize

Encyclopedia: Overdrive