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English definition of “sleepwalker”

sleepwalker

noun [C]     /ˈsliːpˌwɔː.kər/ US  /-ˌwɑː.kɚ/
a person who gets out of bed and walks around while they are sleepingSleep and sleepingWalking and walkers sleepwalk     /-wɔːk/ US  /-wɑːk/ verb [I] sleepwalking     /-ˌwɔː.kɪŋ/ US  /-ˌwɑː.kɪŋ/ noun [U] Sleep and sleepingWalking and walkers
(Definition of sleepwalker noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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