red light

noun

Definition of red lightnext
as in warning
something that tells of approaching danger or risk the reporter took her glower as a red light and stopped asking questions

Synonyms & Similar Words

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Antonyms & Near Antonyms

Example Sentences

Recent Examples of Synonyms for red light
  1. warning
  2. red flag
  3. sign
Noun
  • Despite a series of warnings from the security system, the suspects continued.
    — Lauren Pozen, CBS News, 17 Aug. 2026
  • Researchers found cloned piracy sites displaying fake browser warnings.
    — Kurt Knutsson, FOXNews.com, 17 Aug. 2026
Definition of warning
Noun
  • Imagine handing in a dissertation and your advisor sees the little red flag.
    — Harmeet Kaur, CNN Money, 20 Aug. 2026
  • They're built to avoid obvious red flags and exploit disconnected verification processes.
    — Robert Granados, Forbes.com, 20 Aug. 2026
Definition of red flag
Noun
  • But that agreement, which had already effectively collapsed, officially expired on Monday with no sign of a breakthrough and as tensions have escalated.
    — Hanna Ziady, CNN Money, 18 Aug. 2026
  • On-again, off-again negotiations have shown little sign of a breakthrough, encouraging oil producers and Gulf nations to seek out other trade routes, some of which are already transporting millions of barrels each day.
    — Max Zahn, ABC News, 18 Aug. 2026
Definition of sign
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.

Browse Nearby Words

redivisions
red light
red lights
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Cite this Entry

“Red light.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/red%20light. Accessed 24 Aug. 2026.

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