stereo
C2Pronunciation
UK
- /stˈɛrɪˌəʊ/
US
- /ˈstɛriˌoʊ/
Meanings
Noun
a sound system or player for recorded audio, typically using two speakers
stereophonic sound, a stereo recording, or stereo playback mode
Adjective
recorded, broadcast, or played through separate left and right sound channels
Beyond the definition
You've probably heard the word "stereo" when people talk about music players, speakers, or car sound systems. Most often, it means sound that is played through two channels, left and right, so the music feels wider and more natural than sound coming from just one source.
It is short for "stereophonic sound." In everyday English, though, people also use it to mean the equipment itself, such as a home stereo or a car stereo. You might say, "I'm upgrading my car stereo," or, "The living room has a great stereo setup."
"Stereo," short for stereophonic sound, refers to a way of recording or playing sound through two separate channels, usually left and right. This gives listeners a stronger sense of space and direction, so different voices or instruments can seem to come from different places instead of blending into a single flat sound.
The idea comes from the way human hearing works. Because our ears are spaced apart, each ear receives sound a little differently. Stereo uses that difference to make playback feel more lifelike. This is why music in stereo can feel wide, with a singer in the center, a guitar more to one side, and drums spread across the background.
Over time, the meaning of "stereo" has widened in everyday use. It still technically means two-channel audio, but it is also commonly used for the device that plays the sound, especially in phrases like "car stereo," "home stereo," or "stereo speakers." You may also hear it in phrases like "stereo headphones," where the left and right sides carry different signals. Even though newer systems like surround sound use more channels, stereo remains the standard everyday term for rich, spacious sound.
Examples
- 1
Home listening
I plugged my phone into the stereo and played some music.
- 2
Car audio
The car stereo stopped working on the way home.
- 3
Speakers
We bought new stereo speakers for the living room.
- 4
Music quality
This version of the album has much clearer stereo sound.
More examplesFewer examples
- 5
Radio broadcast
The match was broadcast in stereo on local radio.
- Phrasein stereo
with separate left and right sound channels
- 6
Repairs
The shop repairs old stereos as well as modern sound systems.
See also
Similar
- sound system
- hi-fi
- audio system
Shades of meaning
- boombox
- music center
Contrast
Used with (collocations)
- car stereo
- home stereo
- stereo speakers
- turn up the stereo
Word family
Explore
- receiver
- surround sound
Forms and spellings
2 forms open this card.
Main spelling
- stereonounadjective
Forms
- stereospluralnounadjective