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Từ điển Oxford Learners Wordfinder Dictionary
loudspeaker
electro-acoustic transducer that converts electrical signals into sounds loud enough to be heard at a distance (Freq. 1)
• Syn:
speaker, speaker unit, loudspeaker system, speaker system
• Hypernyms:
electro-acoustic transducer
• Hyponyms:
bullhorn, loud hailer, loud-hailer, squawk box, squawker,
intercom speaker, subwoofer, tannoy, tweeter, woofer
• Part Holonyms:
public address system, P.A. system, PA system, P.A., PA
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