Definition of "twenty-four" []

• The cardinal number immediately following twenty-three and preceding twenty-five. (noun)

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• "In the old days, FBI special agents were required to be on call twenty-four hours a day, seven days a week, even when they were off duty, because, of course, special agents are never off duty."
• "That library job looked easy now, compared to being on call twenty-four/seven."
• "He thought it was a good way to create a feeling of cohesiveness among his coworkers since, during the month of daytime fasting and nights of festivities that their families will be experiencing at home, they will still have to be at work taking calls twenty-four hours a day."