'headphone' definitions:

Definition of 'headphone'

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 'headphone'

From: Moby Thesaurus

acoustical network,
capacitor speaker,
coaxial speaker,
cone,
crossover network,
diaphragm,
dynamic speaker,
earphone,
electrodynamic speaker,
electromagnetic speaker,
electrostatic speaker,
excited-field speaker,
full-fidelity speaker,
headset,
high-fidelity speaker,
high-frequency speaker,
horn,
loudspeaker,
low-frequency speaker,
midrange speaker,
monorange speaker,
moving-coil speaker,
permanent magnet speaker,
radiophone,
radiotelephone,
speaker,
speaker system,
speaker unit,
triaxial speaker,
tweeter,
voice coil,
wireless,
wireless telephone,
woofer