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English definition of “speaker”

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speaker

noun [C]

speaker noun [C] (ELECTRICAL EQUIPMENT)

   /ˈspi·kər/ a piece of electrical equipment through which recorded or broadcast sound can be heard: We bought new speakers for our stereo system.

speaker noun [C] (PERSON WHO KNOWS A LANGUAGE)

   /ˈspi·kər/ someone who speaks a particular language: a French/Chinese speaker

speaker noun [C] (PERSON WHO GIVES FORMAL TALK)

   /ˈspi·kər/ a person who gives a speech at a public event: There will be three speakers at the graduation ceremony. She’s not a good public speaker.    /ˈspi·kər/ A speaker is also the person who controls the way in which business is done in an organization which makes laws, such as the US House of Representatives: the Speaker of the House

speaker noun [C] (PERSON SPEAKING)

 /ˈspi·kər/ a person who speaks or is speaking: Will the speaker please identify herself? literature /ˈspi·kər/ The speaker in a work of literature is the person who is imagined to be saying the written words, or the character who speaks a monologue (= a long speech)
(Definition of speaker from the Cambridge Academic Content Dictionary © Cambridge University Press)
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