Definition of half hour noun from the Oxford Advanced Learner's Dictionary


half hour

BrE BrE//ˌhɑːf ˈaʊə(r)//
; NAmE NAmE//ˌhæf ˈaʊər//
(also half an hour)
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a period of 30 minutes He should arrive within the next half hour. a half-hour drive
See the Oxford Advanced American Dictionary entry: half hour