fall asleep

Definitions of fall asleep
  1. verb
    change from a waking to a sleeping state
    “he always falls asleep during lectures”
    synonyms: dope off, doze off, drift off, drop off, drowse off, flake out, nod off
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    arouse, awake, awaken, come alive, wake, wake up, waken
    stop sleeping
    zonk out
    fall asleep fast, as when one is extremely tired
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