day and night


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day and night

All the time; continuously. I've been working day and night to make sure that everything is perfect when your mom comes to visit.
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day and night

 and night and day
all the time; around the clock. The nurse was at her bedside day and night. The house is guarded night and day.
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day and night

see under night and day.
See also: and, night
References in periodicals archive ?
Throughout the day and night, plaque, which is a thin, sticky film of bacteria, accumulates on teeth.