flagger
Americannoun
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a person who holds a flag at the approach to a road construction site or other traffic obstruction and signals motorists to slow down or stop, or to proceed when it is safe to do so.
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Often, trusted flagger. a person who monitors online content for a site, platform, company, etc., and identifies and reports any that is suspicious or does not comply with laws, rules, or guidelines.
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a person on a racetrack who seeks to maintain a clear course for drivers, alerts them to any obstacle or adverse condition by means of a flag, and keeps race officials continuously informed of any such issues on the course.
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a railway worker who uses a flag to signal train operators to stop when there is work being done on the track ahead.
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Noun Inflected Forms
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.
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Also subject to the ban were Anna-Lena von Hodenberg and Josephine Ballon of HateAid, a German organization that the State Department said functions as a trusted flagger for enforcing the DSA.
From Barron's ● Dec. 23, 2025
"A flagger, I believe, is somebody trying to rekindle a bit of British pride," says Billy Cooper, a roofer from south-west London.
From BBC ● Sep. 3, 2025
In Ventura County, no flagger does it better than Ventura High junior Ava Ortman, who is among the state leaders in touchdowns and is equally effective running the ball.
From Los Angeles Times ● Oct. 17, 2024
“He was an omnivore, an orange-hanky flagger, an aficionado of all-you-can-eat buffets,” Lawlor writes of her shape-shifting protagonist.
From New York Times ● Jun. 22, 2023
A young woman who works as a flagger on a highway crew gets picked up by a man when she waves him through with a mail truck coming the other way.
From Seattle Times ● Dec. 2, 2017
The flaggers arrived at 8 a.m. in two different cars.
From Seattle Times ● Dec. 1, 2023
Already, Facebook employs thousands of unaccountable flaggers who make subjective, ad hoc decisions on what constitutes acceptable speech.
From Washington Post ● Jul. 9, 2020
Facebook is now assigning a score, on a scale of zero to 1, that ranks each user’s reliability as content flaggers.
From Slate ● Aug. 21, 2018
Cleaners can and do act as flaggers, oodles of them.
From New York Times ● Dec. 20, 2017
On reaching their point of destination, which was where the river was less rapid, and its banks sedgy and thickly grown with flaggers and bulrushes, the sport of spearing for eels commenced.
From Handy Andy, Volume One A Tale of Irish Life, in Two Volumes by Lover, Samuel
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.
