speaker Definition in the Cambridge English Dictionary
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Definition of “speaker” - English Dictionary

Definition of "speaker" - American English Dictionary

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speakernoun [C]

speaker noun [C] (ELECTRICAL EQUIPMENT)

 us   /ˈspi·kər/ a ​piece of ​electricalequipment through which ​recorded or ​broadcastsound can be ​heard: We ​bought new speakers for ​ourstereosystem.

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

 us   /ˈspi·kər/ someone who ​speaks a ​particularlanguage: a ​French/Chinese speaker

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

 us   /ˈspi·kər/ a ​person who gives a ​speech at a ​publicevent: There will be three speakers at the ​graduationceremony. She’s not a good ​public speaker.  us   /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 ​pleaseidentify 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 ​longspeech)
(Definition of speaker from the Cambridge Academic Content Dictionary © Cambridge University Press)

Definition of "speaker" - British English Dictionary

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speakernoun [C]

uk   /ˈspiː.kər/  us   /-kɚ/

speaker noun [C] (FORMAL TALK)

B1 a ​person who gives a ​speech at a ​publicevent: a good public speaker Please ​join with me in ​thankingour guest speaker ​tonight. The Democrats have ​chosen the Texas ​statetreasurer as the keynote (= most ​important) speaker at ​theirconvention.
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speaker noun [C] (LANGUAGE)

B1 someone who ​speaks a ​particularlanguage: a ​French speaker a fluentRussian speaker non-English speakers

speaker noun [C] (ELECTRICAL)

A2 the ​part of a ​radio, ​television, or ​computer, or of a ​piece of ​electricalequipment for ​playingrecordedsound, through which the ​sound is ​played. A speaker can be ​part of the ​radio, etc. or be ​separate from it: There's no ​sound coming out of the ​right-hand speaker.

Speakernoun [C]

uk   /ˈspiː.kər/  us   /-kɚ/
the ​person who ​controls the way in which ​business is done in an ​organization which makes ​laws: He ​served for eight ​years as Speaker of the House of Representatives. [as form of address] Mr Speaker, my ​honourablefriend has ​failed to ​consider the ​consequences of his ​proposal.
(Definition of speaker from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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