double up

Definition

To double the quantity, amount or duration of something

Example Sentences

• "I'm going to double up my enlistment."
• "Near-synonym: double over"
• "'It is well, then, that we should be frank,' said the other. 'We both think more than we have said; let us make a clean breast. This masked figure that you saw, did you recognise it?' / 'Well, sir, it went so quick, and the creature was so doubled up, that I could hardly swear to that,' was the answer. 'But if you mean, was it Mr. Hyde?—why, yes, I think it was![…]'"