Definition of peekaboo noun from the Oxford Advanced Learner's Dictionary



BrE BrE//ˌpiːkəˈbuː//
; NAmE NAmE//ˌpiːkəˈbuː//
(British English also peep-bo) [uncountable] Children's games
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a simple game played to amuse young children, in which you keep hiding your face and then showing it again, saying ‘Peekaboo!’ or ‘Peep-bo!’ See related entries: Children's games Word Originlate 16th cent.: from peek + boo.
See the Oxford Advanced American Dictionary entry: peekaboo