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English definition of “hooter”

hooter

noun [C] (DEVICE)    /ˈhuː.tər/ US  /-t̬ɚ/ old-fashioned
an electrical device that makes a loud noise, often to mark the start or end of work at a factoryThe interior of vehicles
(Definition of hooter noun (DEVICE) from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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