Definition of nod off in US English:

nod off

phrasal verb

informal
  • Fall asleep, especially briefly or unintentionally.

    ‘some of the congregation nodded off during the sermon’
    • ‘But for once she had nothing to lean against and she had the impression that if she nodded off anymore, she might possibly fall off her horse.’
    • ‘The defendant is very sorry for causing the fatal accident, Your Honour, it was unintentional, he nodded off whilst driving.’
    • ‘After a while, the girls had quieted down enough for Shannon to fall asleep and for Sarah to start nodding off, yet again.’
    • ‘I thought I was going to fall asleep, but every time I began to nod off, my dad would elbow me slightly.’
    • ‘He admitted that he had nearly nodded off just before the crash.’
    • ‘As the driver's head falls forward as he starts to nod off, the audible alarm is activated.’
    • ‘I ate a light breakfast and nodded off to asleep again, sleepy from the previous night's restlessness.’
    • ‘Find yourself nodding off at your desk by mid-afternoon, then failing asleep during your favorite TV show in the evening?’
    • ‘The road continues to unwind, and Frank nods off briefly, before snapping awake after a close call.’
    • ‘Eric was up an about this morning when we got up this morning before nodding off again and has been asleep for the last few hours.’
    fall asleep, go to sleep, get to sleep, doze off, drop off
    View synonyms