Try Our Apps


WATCH "Lumbersexual"


[aw-dee-oh] /ˈɔ diˌoʊ/
Electronics. designating an electronic apparatus using audio frequencies:
audio amplifier.
of, relating to, or employed in the transmission, reception, or reproduction of sound.
of or relating to frequencies or signals in the audible range.
  1. the audio elements of television (distinguished from video).
  2. the circuits in a receiver for reproducing sound.
  3. the audio part of a television broadcast.
the field of sound recording, transmission, reception, and reproduction.
Origin of audio
1920-25; independent use of audio-


a combining form used in the formation of compound words, with the meanings: “sound within the range of human hearing” (audiometer); “hearing” (audiology); “sound reproduction” (audiophile).
< Latin audī- (stem of audīre to hear) + -o- Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
Cite This Source
Examples from the Web for audio
Contemporary Examples
Historical Examples
  • I'd better have an audio screen set up around this whole area.

  • "Pick him up," the Captain turned and ordered the audio controller.

    The Circuit Riders R. C. FitzPatrick
  • By trial and error Jason brought in the audio for the stations he wanted and tried to follow the course of the attack.

    Deathworld Harry Harrison
  • To the Thawing Wind (audio) He calls on change through the violence of the elements.

    A Boy's Will Robert Frost
  • Though all stations were on the screen at all times, their audio channels could be controlled.

    Deathworld Harry Harrison
British Dictionary definitions for audio


noun (modifier)
of or relating to sound or hearing: audio frequency
relating to or employed in the transmission, reception, or reproduction of sound
of, concerned with, or operating at audio frequencies
Compare video
Word Origin
C20: independent use of audio-


combining form
indicating hearing or sound: audiometer, audiovisual
Word Origin
from Latin audīre to hear
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Cite This Source
Word Origin and History for audio

"sound," especially recorded or transmitted, 1934, abstracted from prefix audio- (in audio-frequency, 1919, etc.), from Latin audire "hear" (see audience).


word-forming element meaning "sound, hearing," from comb. form of Latin audire "hear," (see audience); first used in English as a word-formation element 1913.

Online Etymology Dictionary, © 2010 Douglas Harper
Cite This Source
audio in Medicine

audio- pref.

  1. Hearing: audiology.

  2. Sound: audiogenic.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source
audio in Technology

file format
Sound, one component of multimedia. Computers (and audio compact discs and digital audio tape) work with digital audio, in contrast to vinyl disks or analogue tape.

The Free On-line Dictionary of Computing, © Denis Howe 2010
Cite This Source

Word of the Day

Difficulty index for audio

Many English speakers likely know this word

Word Value for audio

Scrabble Words With Friends

Nearby words for audio