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

Adjective The audio portion of the broadcast was fine but the picture was poor. They listened to an audio recording of the speech. Noun The picture was clear but the audio was very poor.
See More
Recent Examples on the Web: Adjective In other matters, the council approved a contract with HQ Production Audio in an amount not to exceed $41,000 to update the audio/visual system at town hall. Karen Caffarini,, "Merrillville sets fund for new community center sponsorship: Dean and Barbara White Community Center expected to open March 1," 26 Nov. 2020 As networks race to out-do one another with bigger, flashier productions on election night, doctors warn that overstimulating audio-visual content can have adverse effects on the viewers’ health. Anne Quito, Quartz, "The design of America’s frenetic election broadcasts mirror our bewildering times," 20 Nov. 2020 On the rear of the Echo Dots are two ports: a proprietary power port and an audio jack. Jason Cipriani, CNN Underscored, "Amazon’s spherical Echo Dot lineup is as robust as it is cute," 18 Nov. 2020 In the app, travelers can explore the new free selection of addresses, as well as an audio-visual travel program, a postcard-sharing feature, and even new photo filters that travelers can use to create a little art in every city. Stacey Leasca, Travel + Leisure, "Louis Vuitton's Curated Travel Guides Are Now Available on Apple Maps," 17 Nov. 2020 Money is expected to also be spent on improving the audio/visual capacity of the City Council chambers at city hall. cleveland, "Richmond Heights' new playground experiences vandalism; new Planning Commission member appointed," 14 Oct. 2020 Additional amenities include a guest suite, a library and a media room with an advanced audio-visual system. Dallas News, "Preston Keller office showcases three homes," 11 Oct. 2020 Wednesday’s cuts appear to represent half of Digital Trends' editorial staff, including its news department, its video game editor, its audio-visual editor and the host and crew of the site’s daily live show. Mike Rogoway | The Oregonian/oregonlive, oregonlive, "Portland online publisher Digital Trends lays off more than a dozen journalists," 30 Sep. 2020 Through December 2020, her collection of audio-visual works will be available on personal electronic devices as part of reframing the airport experience and elevating travelers’ experiences with color, light and sound. Lisa Deaderick, San Diego Union-Tribune, "At San Diego airport, artist Margaret Noble uses her passions to take her art to new heights," 19 Sep. 2020 Recent Examples on the Web: Noun Roku Ultra took the cake in our tests as the best of the streaming device bunch for its advanced remote, which includes personalized shortcut options and a headphone jack for wireless audio. Rachel Murphy, USA TODAY, "Cyber Monday 2020: The best Roku TV deals right now," 30 Nov. 2020 The HomePod packs room-filling audio that sounds quite good. Jason Cipriani, CNN Underscored, "These are the top deals to shop for on Cyber Monday at Best Buy," 30 Nov. 2020 The sleek package includes NVIDIA Quadro graphics and Bang & Olufsen audio, as well as a long-lasting battery life that makes designing-on-the-go easy and convenient. Sian Babish,, "The best pre-Cyber Monday deals," 29 Nov. 2020 The team captured infrared video and ultrasonic audio of as many as 30 bats a night, from a total of 53 perches, but only one instance of mating. Alex Fox, Smithsonian Magazine, "These Bats Mask Up to Woo Mates," 27 Nov. 2020 An elaborate audio system with cassette and six-disc compact-disc changer. Arthur St. Antoine, Car and Driver, "Tested: 1992 German Sports Coupe Comparo," 27 Nov. 2020 Sonos's sleek home audio products (from discreet wall speakers, to non-intrusive soundbars) are investments, but to sweeten the deal, the brand is having an up to $100 off sale on its bestsellers for Black Friday. Lori Keong, SELF, "The Only 21 Black Friday Tech Deals Worth Knowing About," 27 Nov. 2020 Experts working at ShotSpotter send the department audio clips only after verifying that the sensors indicated gunshots. Omar Abdel-baqui, Detroit Free Press, "Detroit City Council approves traffic camera expansion, gunshot detectors," 26 Nov. 2020 The Blue Yeti is widely regarded as the best microphone for normal people looking for great sounding audio. NBC News, "Best microphones to buy in 2020, according to a tech expert," 25 Nov. 2020

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.

See More

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.

Keep scrolling for more

Learn More about audio

Time Traveler for audio

Time Traveler

The first known use of audio was in 1907

See more words from the same year

Statistics for audio

Last Updated

2 Dec 2020

Cite this Entry

“Audio.” Dictionary, Merriam-Webster, Accessed 4 Dec. 2020.

Keep scrolling for more

More Definitions for audio


How to pronounce audio- (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

More from Merriam-Webster on 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).


Test Your Vocabulary

Musical Words Quiz

  • gramophone
  • Which word describes a musical performance marked by the absence of instrumental accompaniment?
Spell It

Can you spell these 10 commonly misspelled words?

Syn City

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!