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earplug

Definitions of earplug
  1. noun
    an earphone that is inserted into the ear canal
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    type of:
    earphone, earpiece, headphone, phone
    electro-acoustic transducer for converting electric signals into sounds; it is held over or inserted into the ear
  2. noun
    a plug of cotton, wax, or rubber that is fitted into the ear canal for protection against the entry of water or loud noise
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    type of:
    plug, stopper, stopple
    blockage consisting of an object designed to fill a hole tightly
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