au·​dio | \ ˈȯ-dē-ˌō How to pronounce audio (audio) \

Definition of audio

 (Entry 1 of 3)

1 : of or relating to acoustic, mechanical, or electrical frequencies corresponding to normally audible sound waves which are of frequencies approximately from 15 to 20,000 hertz
2a : of or relating to sound or its reproduction and especially high-fidelity reproduction
b : relating to or used in the transmission or reception of sound — compare video
c : of, relating to, or utilizing recorded sound



Definition of audio (Entry 2 of 3)

1 : an audio signal broadly : sound entry 1
2 : the section of television or motion-picture equipment that deals with sound
3 : the transmission, reception, or reproduction of sound

Definition of audio- (Entry 3 of 3)

1 : hearing audiometer
2 : sound audiophile
3 : auditory and audiovisual

Examples of audio in a Sentence


The audio portion of the broadcast was fine but the picture was poor. They listened to an audio recording of the speech.


The picture was clear but the audio was very poor.
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Recent Examples on the Web: Adjective

That's according to a report that the audio chats feature had a vulnerability that could allow a person to listen to another iPhone user's device without consent. Dalvin Brown, USA TODAY, "Apple Watch eavesdropping vulnerability pushes tech giant to disable Walkie-Talkie app," 11 July 2019 This transcript is created in part by audio transcription software and lightly edited by a producer, so there may be slight deviations from the podcast audio. Kaila White, azcentral, "Why doesn't Phoenix have a Chinatown or Little Italy? Valley 101 podcast explores," 8 July 2019 That includes all those reel-to-reel audio tapes of the bands from the 1950s, 1960s and 1970s that Ed Barczyz has been digitizing for us. Sam Boyer,, "Looking at items from the past is always interesting: Whit & Whimsey," 5 July 2019 All of our best books of 2019 and favorite summer reads come in audio form—and there are tons of Audible Originals available to check out as well. Glamour, "The Best Audiobooks to Listen to This Summer," 2 July 2019 Fifty years ago this July, the Apollo 11 mission to the moon made history—and audio engineers were there to capture its dizzying array of sounds. Michael Greshko, National Geographic, "Apollo 8's commander reflects on the sights and sounds of the space age," 28 June 2019 Convenience: Our Daily edition on your computer or mobile device and delivered to your inbox, with an audio summary of the day’s top news. Christian Science Monitor, "Log in," 7 June 2019 Text slates provide some context, but otherwise The Cold Blue story is stitched together with audio clips from nine B-17 crewmen Nelson interviewed around the country. Chuck Thompson, Popular Mechanics, "'Cold Blue' Shows the B-17 Bomber Like You've Never Seen It Before," 16 May 2019 Harris and his team visited museums in Arizona, Colorado and Seattle that have experimented with audio experiences. Troy L. Smith,, "Rock Hall’s $2 million ‘Interactive Garage’ set to wow visitors," 27 June 2019

Recent Examples on the Web: Noun

Bloomberg Google Is Listening Google confirmed that contractors are listening to audio recorded by customers’ virtual assistants, but noted that the company listens to only a small sample—0.2% of all audio samples, to be precise. Alan Murray, Fortune, "Accenture’s New CEO Takes On Digital Disruption, and Diversity: CEO Daily," 12 July 2019 Young has funded an annual scholarship for recording industry students at the university since in 2016 and has donated the school a selection of his touring audio equipment. USA TODAY, "Flying goats, chile duel, ’99 Women’s World Cup statue: News from around our 50 states," 12 July 2019 The company acknowledged that humans can access those recordings after some of its Dutch language audio snippets were leaked. Washington Post, "Human workers can listen to Google Assistant recordings," 11 July 2019 Or, beginning July 15, check out Vibe Flow Yoga, offering a 50-minute yoga class with custom audio headsets on a vibrating floor in a room heated to 80 degrees. Pam Kragen, San Diego Union-Tribune, "One Paseo: A day in the life of San Diego’s new urban village," 11 July 2019 Someone figures this out and pries off the cover to find 27 pieces of music from the world’s cultures, 118 images of life here, greetings in the languages of humans and others, and an audio essay about life on Earth. Ann Druyan, National Geographic, "Dear Voyagers: How your billion-year journey carries true love," 10 July 2019 High-quality audio versions (Apple Lossless and FLAC formats) are also available via, the band said, with the July 13-14, 2018 shows from Boulder running $18 to $20 each, depending on the format. John Wenzel, The Know, "Major Homer, Remington show comes to Denver Art Museum, plus more Colorado arts news," 9 July 2019 As the participants tapped in the passwords, the app recorded audio through the devices’ built-in microphones. Hamza Shaban, The Denver Post, "Hackers may glean your password by listening to how you type on your phone," 7 July 2019 In addition to Teradyne, Monday’s investors include consumer audio specialist Bose Corp., the investment arm of communications chipmaker Qualcomm, Massachusetts mobile display company Kopin Corp., and the investment bank JPMorgan Chase. Mike Rogoway,, "Vancouver startup RealWear raises $80 million for augmented reality hardhat," 1 July 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'audio.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of audio


1907, in the meaning defined at sense 1


1926, in the meaning defined at sense 1

History and Etymology for audio


independent use of audio- as adjective


derivative of audio entry 1, or by shortening of words formed with audio- (as audio-signal)

Combining form

Latin audīre "to hear" + -o- — more at audible entry 1

Note: Probably first in audiometer—see etymology note there.

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Dictionary Entries near audio








Statistics for audio

Last Updated

14 Jul 2019

Look-up Popularity

Time Traveler for audio

The first known use of audio was in 1907

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More Definitions for audio



English Language Learners Definition of audio

 (Entry 1 of 3)

: of or relating to the sound that is heard on a recording or broadcast



English Language Learners Definition of audio (Entry 2 of 3)

: the sound that is heard on a recording or broadcast

English Language Learners Definition of audio- (Entry 3 of 3)

: relating to hearing or sound


au·​dio | \ ˈȯ-dē-ˌō How to pronounce audio (audio) \

Kids Definition of audio

 (Entry 1 of 2)

1 : of or relating to sound or its reproduction
2 : relating to or used in the transmitting or receiving of sound (as in radio or television)



Kids Definition of audio (Entry 2 of 2)

1 : the transmitting, receiving, or reproducing of sound
2 : the section of television equipment that deals with sound

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More from Merriam-Webster on audio

Rhyming Dictionary: Words that rhyme with audio

Spanish Central: Translation of audio

Nglish: Translation of audio for Spanish Speakers

Britannica English: Translation of audio for Arabic Speakers

Comments on audio

What made you want to look up audio? Please tell us where you read or heard it (including the quote, if possible).


an act or instance of editing or removing

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