from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A pair of headphones.
- n. A pair of headphones with a voice transmitter attached.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A pair of headphones or earphones, or a singular headphone or earphone, typically with an attached microphone.
- n. On a bicycle, the system of bearings that connects the fork to the frame.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. receiver consisting of a pair of headphones
From head + set. (Wiktionary)