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English definition of “whirr”

whirr

verb [I] (mainly US whir (-rr-))     /wɜːr/ US  /wɝː/
(especially of machines) to make a low, soft, continuous sound: I could hear the washing machine whirring in the kitchen.Sounds made by objects, movement or impact whirr (mainly US whir)     noun [C usually singular] the whirr of machinerySounds made by objects, movement or impact
(Definition of whirr verb from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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