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.
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researched crowd-control munitions — grenades, flash-bangs, Tasers — for seven years before 2010 when funding was rescinded for such research.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 Moments after being struck directly by a flash-bang in an encounter with federal agents in Minneapolis, a protester showed CNN’s Ryan Young where shrapnel from the flash-bang became embedded into her knee. 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 At $15,000 per box of six drones, and an additional monthly service charge per student, the drones are equipped with nonlethal weaponry, including flash-bangs and pepper spray guns. Emily Greene-Colozzi, The Conversation, 18 Dec. 2025 As the confrontation escalated, agents deployed a flash-bang device while crowds threw bricks and paint cans from rooftops. Greg Wehner, FOXNews.com, 9 Nov. 2025

Word History

First Known Use

1954, in the meaning defined above

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

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Cite this Entry

“Flash-bang.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/flash-bang. Accessed 2 Feb. 2026.

Last Updated: - Updated example sentences
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