|1.||[ verb ] drive or work too hard|
"The teacher is overworking his students" "Overdriving people often suffer stress"
|2.||[ verb ] make use of too often or too extensively|
|Related terms:||use overexploitation|
|3.||[ noun ] 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"
|4.||[ noun ] a high gear used at high speeds to maintain the driving speed with less output power|