as in red light
something that tells of approaching danger or risk
the résumé she accidentally left on the office printer was a red flag that she was planning to quit
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Recent Examples of red flag
This combination of inflation, slowing economic growth and market instability is a red flag for anyone who depends on their investments for retirement income.
—
David Abreu, Forbes.com, 3 June 2025
This is another red flag, as Toshiba’s website says its Canvio portable HDDs only go up to 4TB.
—ArsTechnica, 3 June 2025
Its angular design leans midcentury modern and the sleek-looking red flag plays with proportion in a visually intriguing way.
—Blake Bakkila, Architectural Digest, 3 June 2025
Understanding the gravity of a red flag warning and adhering to these precautions is paramount in averting wildfires during these perilous conditions.
—Ca Weather Bot, Sacbee.com, 1 June 2025
See All Example Sentences for red flag
David Abreu, Forbes.com, 3 June 2025
This is another red flag, as Toshiba’s website says its Canvio portable HDDs only go up to 4TB.
—ArsTechnica, 3 June 2025
Its angular design leans midcentury modern and the sleek-looking red flag plays with proportion in a visually intriguing way.
—Blake Bakkila, Architectural Digest, 3 June 2025
Understanding the gravity of a red flag warning and adhering to these precautions is paramount in averting wildfires during these perilous conditions.
—Ca Weather Bot, Sacbee.com, 1 June 2025
See All Example Sentences for red flag
Recent Examples of Synonyms for red flag
Noun
-
Your skin may be sensitive after red light exposure.—
Sherri Gordon,
Health,
3 June 2025
-
Florida has been on fire on the road, averaging 4.75 red lights 🚨 per game away from home, the fifth-highest mark in NHL history.—
James Mirtle,
New York Times,
22 May 2025
Noun
-
The orders were later reduced to warnings, and the last of the warnings was lifted about 8:30 p.m. Sunday.—
David Garrick,
San Diego Union-Tribune,
2 June 2025
-
This storm may intensify, so be certain to monitor local radio stations and available television stations for additional information and possible warnings from the National Weather Service.—
CA Weather Bot,
Sacbee.com,
1 June 2025
Noun
-
To some, the shift may vindicate Trump's America First strategy — a sign that pressuring allies to increase defense spending is working.—
Scott Neuman,
NPR,
4 June 2025
-
Fans lined up early and made signs to catch a glimpse of the future star.—
Jaylon Thompson,
Kansas City Star,
4 June 2025
Cite this Entry
“Red flag.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/red%20flag. Accessed 12 Jun. 2025.
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