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
Free money offers: Whether in cash or crypto, offers of free money are always a red flag.
—
Roxanne Doss, Kansas City Star, 29 Jan. 2025
Watch for red flags in voicemails: Be wary of messages with vague details, generic names, or urgent demands for a callback.
—Staff Report, Hartford Courant, 29 Jan. 2025
Related Articles Grading The Week: Has Broncos’ Pat Surtain II passed Champ Bailey, Louis Wright as greatest Denver cornerback?
Keeler: Avalanche trade of Mikko Rantanen to Carolina raises red flags.
—Sean Keeler, The Denver Post, 27 Jan. 2025
There have been red flag warnings in some part of Southern California for 15 of the last 18 days, which are set to end at 10 a.m. Friday.
—Rong-Gong Lin Ii, Los Angeles Times, 24 Jan. 2025
See all Example Sentences for red flag 
Roxanne Doss, Kansas City Star, 29 Jan. 2025
Watch for red flags in voicemails: Be wary of messages with vague details, generic names, or urgent demands for a callback.
—Staff Report, Hartford Courant, 29 Jan. 2025
Related Articles Grading The Week: Has Broncos’ Pat Surtain II passed Champ Bailey, Louis Wright as greatest Denver cornerback?
Keeler: Avalanche trade of Mikko Rantanen to Carolina raises red flags.
—Sean Keeler, The Denver Post, 27 Jan. 2025
There have been red flag warnings in some part of Southern California for 15 of the last 18 days, which are set to end at 10 a.m. Friday.
—Rong-Gong Lin Ii, Los Angeles Times, 24 Jan. 2025
See all Example Sentences for red flag
Recent Examples of Synonyms for red flag
Noun
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This portable skincare wand is compact enough to take with you and use on the go, enhancing the skin with red light therapy, galvanic currents, facial massage, and therapeutic warmth.—
Kiana Murden,
Vogue,
7 Feb. 2025
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Wim Hof breathing, cold plunging, sauna, red light therapy supplementation.—
Janelle Ash,
Fox News,
30 Jan. 2025
Noun
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Life is harsh and death can come without warning, as evidenced by an early funeral for a great aunt who missed a major operation because the family still follows the lunar calendar.—
Jordan Mintzer,
The Hollywood Reporter,
14 Feb. 2025
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The warning was issued Thursday at 9:15 p.m., and the latest update about this incident was released on Thursday at 9:26 p.m.—
Kansas City Star Bot,
Kansas City Star,
14 Feb. 2025
Noun
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The cost of winning Bregman is the clearest sign thus far that the Red Sox are completing a circle of their own, getting back to being the type of franchise that prioritizes winning.—
Gabrielle Starr,
Boston Herald,
16 Feb. 2025
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That’s the annual sign Javier Báez has arrived at spring training.—
Cody Stavenhagen,
The Athletic,
16 Feb. 2025
Thesaurus Entries Near red flag
Cite this Entry
“Red flag.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/red%20flag. Accessed 22 Feb. 2025.
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