stereo

¹ American  

[ster-ee-oh, steer-] / ˈstɛr iˌoʊ, ˈstɪər- /

noun

plural

stereos

1. stereoscopic photography.

2. a stereoscopic photograph.

3. stereophonic sound reproduction.

4. a system or the equipment for reproducing stereophonic sound.

5. Printing. stereotype.

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adjective

1. pertaining to stereophonic sound, stereoscopic photography, etc.

verb (used with object)

1. Printing. stereotype.

stereo- ² American  

especially before a vowel, stere-.

1. a combining form borrowed from Greek, where it meant “solid”, used with reference to hardness, solidity, three-dimensionality in the formation of compound words.

   stereochemistry; stereogram; stereoscope.

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stereo. ³ American  

abbreviation

1. stereotype.

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stereo ¹ British  

/ ˈstɪər-, ˈstɛrɪəʊ /

adjective

1. short for stereophonic stereoscopic

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noun

1. stereophonic sound

   to broadcast in stereo

2. a stereophonic record player, tape recorder, etc

3. photog

   1. stereoscopic photography

   2. a stereoscopic photograph

4. printing short for stereotype

stereo- ² British  

combining form

1. indicating three-dimensional quality or solidity

   stereoscope

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Etymology

Origin of stereo¹

First recorded in 1815–25; by shortening

Origin of stereo-²

From the Greek word stereós

Explanation

A sound system with speakers that makes music seem to come from several directions at once—almost like it's all around you—is called a stereo. Your older brother should have set aside some money for food and rent instead of blowing his whole paycheck on a new stereo system. The kind of sound that's layered and three-dimensional is stereo sound, and the machine you use to play this type of recording is also called a stereo. The word is shorthand for stereophonic, which describes something recorded using two or more channels so that the sound seems to surround the listener and come from more than one source. You can also break this word into its Greek roots, stereo, "solid or three-dimensional," and phone, "voice."

Example Sentences

"We only had stereo speakers, but the house shook because our friends were dancing so hard," says Pierson.

From BBC • Mar. 17, 2026

"It gives us what you might call a stereo perspective -- two different vantage points simultaneously."

From Science Daily • Mar. 14, 2026

We dubbed our car the Brucemobile and never played anything else on the car stereo for years.

From The Wall Street Journal • Oct. 24, 2025

On “Sound Machine,” a track from the new album “Aloud” from poet Raymond Antrobus and percussionist Evelyn Glennie, Antrobus recalls his fear as a child when he knocked over his dad’s stereo.

From Los Angeles Times • Sep. 19, 2025

Between us, I was the only one allowed to turn on the deluxe stereo.

From "P.S. Be Eleven" by Rita Williams-Garcia

Related Words

• audio system
• radio
• sound system