active shooter
Americannoun
Etymology
Origin of active shooter
First recorded in 1965–70
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.
Just like other students at Brown University, she was distraught after receiving an active shooter alert from the university's department of public safety.
From BBC • Dec. 14, 2025
More than 20 million adults have had active shooter training, learning how to keep doors shut or disarm a shooter, participating in multiplayer video simulations.
From Los Angeles Times • Nov. 18, 2025
After the shooting, Texas mandated that officers receive 16 hours of active shooter training every two years.
From Salon • May 23, 2024
With a background in law enforcement, Burgans also set up active shooter training.
From Seattle Times • Feb. 28, 2024
Before the current school year started in Texas, the department says, it held active shooter trainings with school districts and conveyed its new directive.
From New York Times • Jan. 19, 2024
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.
