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
If drivers don’t stop for red lights or stop signs, changing the speed of a sign will not matter!
—
Letters To The Editor, San Diego Union-Tribune, 8 Sep. 2025
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
Letters To The Editor, San Diego Union-Tribune, 8 Sep. 2025
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
Recent Examples of Synonyms for red lights
Noun
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The transfer raised some red flags for the senator, who sits on the Senate Judiciary Committee.—
Jeremy Lott,
The Washington Examiner,
12 Sep. 2025
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In a 2024 study, scientists taped red flags taped to crickets’ hind legs to imitate the matador bugs and see how predatory birds responded.—
Laura Baisas,
Popular Science,
11 Sep. 2025
Noun
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In recent years, Grupo Firme, Fuerza Regida, and Peso Pluma have received similar warnings from different cartels, prompting them to cancel shows to protect themselves and their fans.—
Tomás Mier,
Rolling Stone,
13 Sep. 2025
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France’s cyber defense agency CERT-FR has confirmed the latest such warnings have just been issued.—
Zak Doffman,
Forbes.com,
13 Sep. 2025
Noun
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Investors flocked to bonds because of signs of a slowdown in the labor market.—
John Towfighi,
CNN Money,
11 Sep. 2025
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On the flip side, secrecy triggers hypervigilance, where one partner obsessively scans for signs of deception or hidden threats, and naturally so given the suspicious nature of the matter.—
Mark Travers,
Forbes.com,
11 Sep. 2025
Cite this Entry
“Red lights.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/red%20lights. Accessed 14 Sep. 2025.
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