audio

¹ American  

[aw-dee-oh] / ˈɔ diˌoʊ /

adjective

1. Electronics. designating an electronic apparatus using audio frequencies.

   audio amplifier.

2. of, relating to, or employed in the transmission, reception, or reproduction of sound.

3. of or relating to frequencies or signals in the audible range.

---

noun

1. Television.

   1. the audio elements of television (video ).

   2. the circuits in a receiver for reproducing sound.

   3. the audio part of a television broadcast.

2. the field of sound recording, transmission, reception, and reproduction.

audio- ² American  

1. 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 ).

---

audio ¹ British  

/ ˈɔːdɪˌəʊ /

noun

1. of or relating to sound or hearing

   audio frequency

2. relating to or employed in the transmission, reception, or reproduction of sound

3. of, concerned with, or operating at audio frequencies

---

audio- ² British  

combining form

1. indicating hearing or sound

   audiometer

   audiovisual

---

Etymology

Origin of audio¹

First recorded in 1920–25; independent use of audio-

Origin of audio-²

< Latin audī- (stem of audīre to hear) + -o-

Example Sentences

Embarking on expeditions in vast and sometimes dangerous environments, Bigfoot hunters set out with drones, infrared cameras, audio recorders and materials to cast footprints.

From BBC • Apr. 3, 2026

Anne writes about the people and the companies that release, distribute and license music; the concert business and live-event ticketing; and podcasting, radio and the changing ways listeners consume audio.

From The Wall Street Journal • Apr. 2, 2026

These tools track their productivity, customer interactions and real-time behavior — including, in some cases, audio and video surveillance on the job.

From MarketWatch • Apr. 1, 2026

Italian-American actress Isabella Rossellini lends her voice to an audio guide for the exhibition, which brings together works from museums including France's Louvre.

From Barron's • Mar. 27, 2026

I could conceal my current location by taking the call as audio only, but that might make him suspicious.

From "Ready Player One: A Novel" by Ernest Cline

Related Words

• TV set
• box
• station
• video