Definition of sleepwalker in US English:

sleepwalker

noun

  • See sleepwalk

    • ‘She, her two older sisters and her nephew had all been sleepwalkers.’
    • ‘He was a sleepwalker as a kid, and broke his ankle falling out a second story window.’
    • ‘Keep habitual sleepwalkers safe from harm by keeping doors and windows closed and guarded.’
    • ‘Bedrooms for sleepwalkers should be on the first floor of the home, and windows and doors must be firmly secured.’
    • ‘It is important to realize that sleepwalkers are actually sleeping.’
    somnambulist, noctambulist
    View synonyms

Pronunciation

sleepwalker

/ˈslipˌwɔkər//ˈslēpˌwôkər/