noun
a rhythm or rate of movement that is twice as fast as normal
adjective
referring to something that is done at twice the normal speed or rate
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The employees were asked to work double time to meet the project deadline.
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I had to hustle and work double time to finish my homework before the party.
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I pulled a double time shift at work yesterday to cover for my coworker.
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She's been putting in double time at the gym to get ready for the marathon.