demo

/ˈdɛmoʊ/
verb
  1. To demonstrate or show how something works, especially a product or piece of software.
    • She demoed the guitar app to her music class.
    • He will demo the software at the conference tomorrow.
    • The salesperson demoed the new vacuum cleaner for us.
  2. To destroy or demolish something, especially a building or structure.
    • The crew will demo the old warehouse next week.
    • The city plans to demo the abandoned school and build a park.
    • They had to demo the unsafe bridge before it collapsed.
Antonyms
noun
  1. A short demonstration or sample of a product, especially software or music, to show what it can do.
    • I listened to a demo of the band's upcoming album.
    • The company released a free demo of the new video game.
    • You can download a demo of the app before buying it.
  2. A public protest or political demonstration.
    • The student demo blocked the main street for hours.
    • She organized a peaceful demo to demand climate action.
    • Thousands of people joined the demo against the new law.
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