against the clock

Also, against time. In a great hurry, as fast as possible, as in With her term paper due on Monday, she was racing against the clock to finish it, or They were working against time to stay on schedule. The term comes from various sports in which the contestants do not directly compete against each other but instead are timed individually, the winner being the one who is fastest. Its figurative use dates from the mid-1900s.

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bailiwick
a creature, variously described as a serpent, lizard, or dragon, said to kill by its breath or look.
place or source of origin.
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Words nearby against the clock

again and again, against, against all odds, against one's better judgment, against one's will, against the clock, against the grain, against the tide, agal, agalactia, agalactorrhea
The American Heritage® Idioms Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.