loudspeaker - definition and synonyms

noun [countable] 

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/ˌlaʊdˈspiːkə(r)/
singularloudspeaker
pluralloudspeakers
  1. 1

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    a piece of electrical equipment that allows sounds or voices to be heard loudly at a distance
  2. 2
    old-fashioned a speaker that is part of a radio or music system