flash-bang

noun

variants or flash-bang grenade or flash grenade
plural flash-bangs or flash-bang grenades or flash grenades
: an explosive device that produces a blinding flash of light and a sudden, loud noise intended to temporarily stun, distract, and disperse people and that is thrown by hand or projected
Flash-bangs have become a popular but controversial diversionary tactic used by SWAT teams. The devices give officers key seconds to make tactical moves and are especially useful in hostage situations.Michael S. Rosenwald
When armed motorcades arrive at the entrance, Marines toss flash-bang grenades to clear the crowd.Gregg Zoroya
Late in the afternoon, officers fired about a dozen flash grenades at the suspect. The loud, bright projectiles seemed to disorient him, and officers were able to rush in and take him into custody.Jenna Lyons and Peter Fimrite

called also stun grenade

Examples of flash-bang in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
The mayor characterized the protests as peaceful, as federal officers also used pepper balls, flash-bang grenades and rubber bullets against the demonstrators. Landon Mion, FOXNews.com, 4 Feb. 2026 Officers set off tear gas and flash-bang grenades to move the crowd, including Garza, down J Street. Theresa Clift, Sacbee.com, 4 Feb. 2026 Mesloh, a former police officer, researched crowd-control munitions — grenades, flash-bangs, Tasers — for seven years before 2010 when funding was rescinded for such research. Minneapolis Star Tribune, Chicago Tribune, 26 Jan. 2026 The streets still looked like a war zone, with flash-bangs detonating and clouds of tear gas in the air. Robert F. Worth, The Atlantic, 26 Jan. 2026 Federal officers wielded batons and deployed flash-bang devices against the crowd. Jack Brook, Los Angeles Times, 24 Jan. 2026 Campbell also pointed out that many law enforcement experts, including the Police Executive Research Forum, say the use of flash-bangs on demonstrators is usually counterproductive. Graham Hurley, CNN Money, 20 Jan. 2026 The New Yorker staff writer Emily Witt was reporting near the scene, where protesters quickly gathered to confront ICE agents, and were met with tear gas and flash-bang devices. Ian Crouch, New Yorker, 15 Jan. 2026 Special operations forces threw flash-bangs into the area where they were found. CBS News, 8 Jan. 2026

Word History

First Known Use

1954, in the meaning defined above

Time Traveler
The first known use of flash-bang was in 1954

Browse Nearby Words

Cite this Entry

“Flash-bang.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/flash-bang. Accessed 11 Feb. 2026.

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