as in red flags
something that tells of approaching danger or risk
the reporter took her glower as a red light and stopped asking questions
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Example Sentences
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Recent Examples of red lights
That interaction produces the green and red lights.
—
Jamie Carter, Forbes.com, 2 Sep. 2025
The crossing arms are already down, red lights flashing in warning.
—Devoun Cetoute, Miami Herald, 23 Aug. 2025
The tower’s glimmering red lights mix with an orange-and-pink sunset in the background to create an image that feels both moody and instantly nostalgic.
—Ray Mark Rinaldi, Denver Post, 18 Aug. 2025
After seven red lights, two final blue flash near the 9,000 rpm mark—your cue to pull the upshift paddle.
—Jonny Lieberman, Robb Report, 16 Aug. 2025
Once the bus stops, red lights will flash and a stop sign will swing out.
—Sacbee.com, 11 Aug. 2025
For an entire week, the flashing blue and red lights of police vehicles cast eerie glows inside residents’ homes, while helicopters and drones hummed relentlessly overhead.
—Alaa Elassar, CNN Money, 10 Aug. 2025
As the truck fled the scene, deputies attempted to stop the driver, but officials say Hernandez kept going, blowing through several red lights before crashing into Flemming and Burns, KRIV reported.
—Mitchell Willetts, Fort Worth Star-Telegram, 5 Aug. 2025
Jamie Carter, Forbes.com, 2 Sep. 2025
The crossing arms are already down, red lights flashing in warning.
—Devoun Cetoute, Miami Herald, 23 Aug. 2025
The tower’s glimmering red lights mix with an orange-and-pink sunset in the background to create an image that feels both moody and instantly nostalgic.
—Ray Mark Rinaldi, Denver Post, 18 Aug. 2025
After seven red lights, two final blue flash near the 9,000 rpm mark—your cue to pull the upshift paddle.
—Jonny Lieberman, Robb Report, 16 Aug. 2025
Once the bus stops, red lights will flash and a stop sign will swing out.
—Sacbee.com, 11 Aug. 2025
For an entire week, the flashing blue and red lights of police vehicles cast eerie glows inside residents’ homes, while helicopters and drones hummed relentlessly overhead.
—Alaa Elassar, CNN Money, 10 Aug. 2025
As the truck fled the scene, deputies attempted to stop the driver, but officials say Hernandez kept going, blowing through several red lights before crashing into Flemming and Burns, KRIV reported.
—Mitchell Willetts, Fort Worth Star-Telegram, 5 Aug. 2025
Recent Examples of Synonyms for red lights
Noun
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With this knowledge, CR decided to test several popular toddler towers themselves to alert caregivers to any safety red flags.—
DeVonne Goode,
Parents,
4 Sep. 2025
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There weren’t any immediate red flags in the months leading up to the start of school, but on the first day fellow teachers told her about one student’s severe behavioral issues.—
IndyStar,
IndyStar,
3 Sep. 2025
Noun
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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.—
NC Weather Bot,
Charlotte Observer,
5 Sep. 2025
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The entire shoreline is under high swim risk warnings, and advisories for boaters and mariners.—
Sarah Moore,
Freep.com,
5 Sep. 2025
Noun
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According to the Mayo Clinic, the surgery involves cutting away thin layers of the skin until there are no signs of cancer.—
Ingrid Vasquez,
PEOPLE,
5 Sep. 2025
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There are early signs that Alonso will bring the best out of him.—
Mario Cortegana,
New York Times,
5 Sep. 2025
Cite this Entry
“Red lights.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/red%20lights. Accessed 9 Sep. 2025.
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