active shooter

noun

plural active shooters
: a person who is illegally using a firearm to kill or try to kill people especially in a public place : a person who is shooting at people
Stunned shoppers and mall employees initially mistook the sound of glass breaking for gunshots, leading to false rumors of an active shooter.Caitlin Antonios
active shooter drills

Examples of active shooter 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.
Abdullah had previously worked in a nearby dental office, but after the 2019 massacre at two mosques in Christchurch, New Zealand, he was inspired to switch focus and began to train himself on situational awareness and how to analyze an unfolding active shooter incident. Hannah Fry, Los Angeles Times, 22 May 2026 Mohammed added that the mosque has practiced active shooter drills before, but mainly in the case of a single gunman, not two. Emma Bowman, NPR, 20 May 2026 As the officers deployed what Wahl described as an active shooter response at the mosque and at an adjacent school, more gunfire was reported blocks away, the chief said. Tim Stelloh, NBC news, 19 May 2026 Over the weekend, at least five other zoos received either active shooter or bomb threats, CBS News affiliates report. Dan Raby, CBS News, 18 May 2026 See All Example Sentences for active shooter

Word History

First Known Use

1999, in the meaning defined above

Time Traveler
The first known use of active shooter was in 1999

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Cite this Entry

“Active shooter.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/active%20shooter. Accessed 23 May. 2026.

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