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• demo
  demo

  noun

  demonstration.
• Demo
  Demo

  noun

  a member of the Democratic Party; Democrat.
• demo-
  demo-

  a combining form occurring in loanwords from Greek, where it meant “people” (democratic ); on this model, used in the formation of compound words (demography ).

demo

¹ American  

[dem-oh] / ˈdɛm oʊ /

noun

plural

demos

1. demonstration.

2. demonstrator.

3. a recording of a new song or of one performed by an unknown singer or singing group, distributed to disc jockeys, recording companies, etc., to demonstrate the merits of the song or performer.

4. demolition.

   He does flooring and demo for a living.

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verb (used with object)

demoed, demoing

1. to try out or exhibit the use of (a product, process, or the like).

   You can demo the game without downloading or buying it.

2. to record (a song) to demonstrate the merits of the song or performer.

Demo ² American  

[dem-oh] / ˈdɛm oʊ /

noun

Informal.

plural

Demos

1. a member of the Democratic Party; Democrat.

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demo- ³ American  

1. a combining form occurring in loanwords from Greek, where it meant “people” (democratic ); on this model, used in the formation of compound words (demography ).

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demo ¹ British  

/ ˈdɛməʊ /

noun

1. short for demonstration

2. 1. a demonstration record or tape, used for audition purposes

   2. a demonstration of a prototype system

3. short for demonstrator

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demo- ² British  

combining form

1. indicating people or population

   demography

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Etymology

Origin of demo¹

1935–40; by shortening; see -o

Origin of Demo²

An Americanism dating back to 1785–95

Origin of demo-³

< Greek dēmo-, combining form of dêmos

Explanation

A demo is what you give to show how something works. You might give a demo of your fancy new espresso machine to your weekend guests, so they'll know how to use it. Demo is short for demonstrate or demonstration. It can be a verb, as when a tech company demos its new tablet or laptop. It's also a noun: "The demo of that software was pretty interesting." In the music industry, a demo is a practice version of a song, meant to show a record label or music venue what a performer's music sounds like. This meaning's been around since the 1960s, while earlier it meant "a political demonstration."

Example Sentences

After years of sketches, she was emboldened to finish the song after running into front man Lupe Esparza at 2022’s Bésame Mucho festival, who encouraged her to send a demo.

From Los Angeles Times • May 11, 2026

At a UK demo of Alexa+, it responded, "actually, you can leave the brolly at home, with sunny skies and no rain in the forecast, you'll be sorted without it".

From BBC • Mar. 19, 2026

The Roadster “will be the most exciting, whether it works or not, demo ever of any product,” Musk said at Tesla’s annual shareholder meeting last November, according to a transcript.

From MarketWatch • Mar. 17, 2026

In an expansion of its Berlin site, Google added an "AI demo space" for new innovations, a separate floor for research teams and an area where AI-focused events will be held.

From Barron's • Mar. 5, 2026

“Not bad, huh? I can put it on my demo reel now.”

From "The House That Lou Built" by Mae Respicio

Related Words

• album
• disk