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  1. the time at which a person usually goes to bed: It's past my bedtime.
  2. the time at which a person goes to bed on a particular night: I have to get up early tomorrow so bedtime tonight will be 9 o'clock.

Origin of bedtime

Middle English word dating back to 1200–50; see origin at bed, time
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for bedtime


    1. the time when one usually goes to bed
    2. (as modifier)a bedtime story
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for bedtime


also bed-time, early 13c., from bed (n.) + time (n.). Bed-time story attested from 1867.

Online Etymology Dictionary, © 2010 Douglas Harper