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English definition of “conductor”

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conductor

noun [C] uk   /kənˈdʌk.tər/ us    /-tɚ/

conductor noun [C] (MUSIC)

B2 someone who directs the performance of musicians or a piece of music: The conductor raised his baton. a guest conductor

conductor noun [C] (PUBLIC TRANSPORT)

US ( UK guard) a railway official who travels on and is responsible for a train UK someone whose job is to sell tickets on a bus, train, or other public vehicle

conductor noun [C] (SUBSTANCE)

a substance that allows heat or electricity to go through it: Metal is a good conductor of heat.
(Definition of conductor from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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