a high gear used at high speeds to maintain the driving speed with less output power
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"
drive or work too hard; "The teacher is overworking his students"; "Overdriving people often suffer stress"
a substance formed during a chemical process before the desired product is obtained
lying between two extremes in time or space or degree; "going from sitting to standing without intermediate pushes with the hands"; "intermediate stages in a process"; "intermediate stops on the route"; "an intermediate level"