Used and loved by millions
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com
active shooter
Grammar usage guide and real-world examplesUSAGE SUMMARY
The phrase "active shooter" is correct and usable in written English.
It is typically used in discussions about incidents involving individuals who are actively engaged in shooting at people in a populated area. Example: "The school went into lockdown after reports of an active shooter on campus."
✓ Grammatically correct
News & Media
Academia
Alternative expressions(1)
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Human-verified examples from authoritative sources
Exact Expressions
60 human-written examples
There's an active shooter!
News & Media
All personnel enact active shooter protocols immediately.
News & Media
Lockdown drills, active shooter drills.
News & Media
The notion of an "active shooter" did not yet exist.
Encyclopedias
The active shooter continued toward the entrance to the Government.
News & Media
Active shooter incident reported at CASCOM HQ, Bldg.
News & Media
The active shooter went down, knocking into a metal railing.
News & Media
The school's public address system announced an active shooter.
News & Media
The students had practiced to deal with an active shooter.
News & Media
Was there an active shooter in the building?
News & Media
There was an active shooter on the property.
News & Media
Expert writing Tips
Best practice
Use "active shooter" precisely to describe situations where an individual is actively engaged in killing or attempting to kill people in a populated area. Do not use it for isolated incidents of gun violence.
Common error
Avoid using "active shooter" to describe situations that do not fit the specific definition, such as a single incident of shots fired without an intent to harm multiple people in a populated area. Misusing the term can cause unnecessary panic and confusion.
Source & Trust
84%
Authority and reliability
4.6/5
Expert rating
Real-world application tested
Linguistic Context
The phrase "active shooter" functions primarily as a noun phrase, identifying an individual engaged in a specific type of violent act. Ludwig AI confirms this usage.
Frequent in
News & Media
88%
Academia
7%
Science
2%
Less common in
Encyclopedias
1%
Formal & Business
1%
Social Media
0%
Ludwig's WRAP-UP
The phrase "active shooter" is a commonly used term, primarily in News & Media and academic contexts, to describe an individual actively engaged in killing or attempting to kill people in a populated area. As Ludwig AI confirms, it's grammatically correct and serves as a warning of immediate danger. While alternatives like "armed assailant" exist, "active shooter" is the established term for this specific type of event. It's crucial to use the term accurately to avoid causing unnecessary panic. When writing about this subject, prioritizing factual reporting and providing actionable safety information is key.
More alternative expressions(6)
Phrases that express similar concepts, ordered by semantic similarity:
Armed assailant
Focuses on the fact that the shooter is armed and attacking.
Ongoing shooting incident
Highlights the active nature and immediacy of the shooting event.
Perpetrator of a mass shooting
Emphasizes the mass scale of the shooting and the person responsible.
Shooter in progress
Uses different words to point out that there is a shooter currently shooting.
Current shooting event
Focuses on the event of the shooting.
Individual engaged in a shooting
A more descriptive way to describe that person who's currently shooting.
Gunman on the loose
Highlights the unrestricted movement and threat posed by the shooter.
Shooting suspect
Focuses on the shooter from a legal or investigative perspective.
Attacker with a firearm
Highlights that an attacker is using a firearm.
Violent gunman
Places emphasis on the act of violence.
FAQs
How is the term "active shooter" typically used?
The term "active shooter" is typically used to describe a situation where an individual is actively engaged in killing or attempting to kill people in a confined and populated area. It's often used in news reports, emergency alerts, and safety protocols.
What should I do if I encounter an "active shooter" situation?
The recommended response in an "active shooter" situation is to run, hide, or fight. Run if there is an escape path, hide if running is not possible, and fight as a last resort if your life is in imminent danger.
What are some alternative phrases for "active shooter"?
Some alternative phrases for "active shooter" include "armed assailant", "ongoing shooting incident", or "perpetrator of a mass shooting", depending on the context.
How can I prepare for a potential "active shooter" situation?
You can prepare by familiarizing yourself with the "run, hide, fight" protocol, participating in "active shooter" drills, and being aware of your surroundings. It is also useful to know the emergency procedures in your workplace or school.
Editing plus AI, all in one place.
Stop switching between tools. Your AI writing partner for everything—polishing proposals, crafting emails, finding the right tone.
Table of contents
Usage summary
Human-verified examples
Expert writing tips
Linguistic context
Ludwig's wrap-up
Alternative expressions
FAQs
Source & Trust
84%
Authority and reliability
4.6/5
Expert rating
Real-world application tested