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Synonyms

sleep-in

American  
[sleep-in] / ˈslipˌɪn /

adjective

  1. live-in.


noun

  1. a person who sleeps in at a place of employment.

sleep in British  

verb

  1. to sleep longer than usual

  2. to sleep at the place of one's employment

"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

sleep in Idioms  
  1. Sleep at one's place of employment, as in They have a butler and maid who both sleep in . [First half of 1800s]

  2. Sleep late, either accidentally or deliberately. For example, I slept in and missed my usual train , or On weekends we like to sleep in . [Late 1800s]


Etymology

Origin of sleep-in

First recorded in 1950–55; adj., noun use of verb phrase sleep in