demo
noun
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demo
1 American
[dem-oh]
/ ˈdɛm oʊ /
noun
-
demos
plural
-
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.
-
He does flooring and demo for a living.
verb (used with object)
demoed,
demoing
-
to try out or exhibit the use of (a product, process, or the like).
You can demo the game without downloading or buying it.
-
to record (a song) to demonstrate the merits of the song or performer.
Demo
2
American
[dem-oh]
/ ˈdɛm oʊ /
noun
Informal.
-
Demos
plural
demo-
3
American
demo
1
British
/ ˈdɛməʊ /
noun
-
short for demonstration
-
-
a demonstration record or tape, used for audition purposes
-
a demonstration of a prototype system
-
-
short for demonstrator
demo-
2
British
combining form
Other Word Forms
Noun Inflected Forms
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."
Vocabulary lists containing demo
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
See Examples For:
Weizenbaum, who died in 2008, wrote Doctor as a convenient demo.
From The Wall Street Journal ● Aug. 19, 2026
And in a demo it definitely felt sleek and light.
From The Wall Street Journal ● Jul. 22, 2026
“Wonderful World” was a demo that Keen Records put on a shelf.
From Los Angeles Times ● Jul. 2, 2026
McPeake noted that the company sold a $332,000 system to an unnamed “large financial institution” last year and conducted a live cybersecurity demo at a conference in March.
From Barron's ● Jun. 15, 2026
The unveiling of the STM and the planned demo, scheduled to take place later this year, has ignited fervor across the globe.
From "The First State of Being" by Erin Entrada Kelly
"One day I hope I will never have to go on a Flower Demo protest again."
From BBC ● Feb. 23, 2025
It received a Best Paper Honorable Mention recognition, while a demo of the research team's broader robotic feeding system received a Best Demo Award.
From Science Daily ● May 9, 2024
Demo sessions began at Lanois’ makeshift studio in a converted movie theater in Oxnard, not far from Dylan’s home on Malibu’s Point Dume.
From Los Angeles Times ● Jan. 26, 2023
So while sitting last month in Father Demo Square, in Manhattan’s West Village, Brookshire took advantage.
From New York Times ● Dec. 6, 2022
Demo notched an arrow to his bow, drove it through the right rear tire of the vehicle.
From The Tarn of Eternity by Frank Tymon
Demos were all very well, but Dean knew they could be faked.
From The Wall Street Journal ● Mar. 25, 2026
Demos, presentations and meetings will take place in a massive convention center as well as ballrooms and suites throughout the city.
From Barron's ● Jan. 3, 2026
“Undoubtedly, this scenario significantly impacts their mental well-being as well,” said Demos Antoniou, director of the Cyprus Third Age Observatory, a seniors-rights group.
From Seattle Times ● Aug. 1, 2023
Demos recorded at that time got the attention of Steve Allen, who put her on his prime-time television variety show.
From New York Times ● Mar. 15, 2023
Virginia Demos, who teaches psychology at Harvard, recalls having long conversations with Tomkins during the 1988 Democratic National Convention.
From "Blink" by Malcolm Gladwell
But Parks stuck with it, tirelessly promoting the sport via demos at hospitals, tennis clubs and even in car parks.
From BBC ● Jul. 7, 2026
That leaves investors with a clearer path than the headlines suggest: own the platform for versality and flexibility, screen the suppliers for revenue, avoid paying up for the humanoid demos.
From MarketWatch ● Jul. 1, 2026
This year tech firms were able to offer demos of their wares for the first time on Paris' Champs-Elysees avenue.
From Barron's ● Jun. 17, 2026
A number of demos in the keynote modeled people using Siri with Apple products in extended conversations, both via chat and voice.
From The Wall Street Journal ● Jun. 8, 2026
This being a direct rather than a representative democracy, membership of the demos, or sovereign body, was by right rather than by election, and every decision was taken on a one-man, one-vote basis.
From "Words Like Loaded Pistols" by Sam Leith
When Musk returned to the stage a year later, he demoed a prototype called Bumblebee, with visible wires and actuators.
From The Wall Street Journal ● Jan. 3, 2026
GoDaddy demoed the AI app builder, agentic workflows for core small and midsize customers, and Airo for WordPress professionals.
From Barron's ● Dec. 6, 2025
Both nominations recognise Now and Then, a song that John Lennon demoed in the 1970s, and which was finally completed by his surviving bandmates Paul McCartney and Ringo Starr last year.
From BBC ● Jan. 31, 2025
Wright demoed the songs from the “Dream Weaver” LP on an array of then-novel electronic instruments, which he’d gotten interested in shortly before leaving Spooky Tooth.
From Los Angeles Times ● Sep. 5, 2023
In early October, Tesla demoed Optimus, its humanoid robot.
From Slate ● Oct. 24, 2022
At the Times Food Stage, Cassandra Peterson, known for her work as Elvira, will be demoing from her book “Elvira’s Cookbook From Hell.”
From Los Angeles Times ● Mar. 11, 2026
That's what researchers demoing experimental tech at Warwick University's Festival of Innovation are hoping to find out.
From BBC ● Jan. 31, 2025
In a third, Jonathan Shobrook, a fellow, was demoing his product, Adrenaline, a tool that lets you ask natural-language questions of your code base.
From New York Times ● May 31, 2023
But at the same time, you’re demoing things in actual products, like translation, that are real for people or could be real today.
From The Verge ● May 13, 2022
They took their food processors on the road, demoing the quick work they could made of the labor-intensive, classical French techniques in style at the time.
From Salon ● Dec. 5, 2021
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
