'earphone' definitions:

Definition of 'earphone'

(from WordNet)
noun
Electro-acoustic transducer for converting electric signals into sounds; it is held over or inserted into the ear; "it was not the typing but the earphones that she disliked" [syn: earphone, earpiece, headphone, phone]

Synonyms of 'earphone'

From: Moby Thesaurus
  • acoustical network,
  • capacitor speaker,
  • coaxial speaker,
  • cone,
  • crossover network,
  • diaphragm,
  • dynamic speaker,
  • electrodynamic speaker,
  • electromagnetic speaker,
  • electrostatic speaker,
  • excited-field speaker,
  • full-fidelity speaker,
  • headphone,
  • headset,
  • high-fidelity speaker,
  • high-frequency speaker,
  • horn,
  • loudspeaker,
  • low-frequency speaker,
  • midrange speaker,
  • monorange speaker,
  • moving-coil speaker,
  • permanent magnet speaker,
  • speaker,
  • speaker system,
  • speaker unit,
  • triaxial speaker,
  • tweeter,
  • voice coil,
  • woofer