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
an audio signal
2
a
: of or relating to sound or its reproduction and especially high-fidelity reproduction
an audio system
audio files
a recording with good audio quality
an audio stream of the concert
the film's audio engineers
b
: relating to or used in the transmission or reception of sound
an audio receiver
compare video
c
: of, relating to, or utilizing recorded sound
an audio presentation
1
: an audio signal
wirelessly transmits audio
2
: electronic equipment primarily designed to handle signals of an audible frequency
connects to the car's audio
3
: the transmission, reception, or reproduction of sound
The trial is not being streamed via audio or video.—Jon Brodkin
1
: hearing
audiometer
2
: sound
audiophile
3
: auditory and
audiovisual
Cite this Entry
“Audio.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/audio. Accessed 1 Sep. 2026.
Copy CitationLove words? Need even more definitions?
Merriam-Webster unabridged
