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English definition of “sleep in”

sleep in

verb [I/T] phrasal verb with sleep  /slip/ (past tense and past participle slept  /slept/) us  
to sleep later than you usually do, or later than most people do: Amelia is an early riser, but Gorda sleeps in whenever she can.
(Definition of sleep in from the Cambridge Academic Content Dictionary © Cambridge University Press)
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