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"
mistake one thing for another; "you are confusing me with the other candidate"; "I mistook her for the secretary"
make unclear, indistinct, or blurred; "Her remarks confused the debate"; "Their words obnubilate their intentions"
make unclear or incomprehensible; "The new tax return forms only confuse"
be confusing or perplexing to; cause to be unable to think clearly; "These questions confuse even the experts"; "This question completely threw me"; "This question befuddled even the teacher"
cause to feel embarrassment; "The constant attention of the young man confused her"