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
  • Officials across the five states issued travel and safety warnings yesterday and today and were starting to assess damage.
    — Erika Angulo, NBC news, 11 Oct. 2026
  • The production was shut down in Livingston, Montana last Saturday when locals complained about the production’s impact on the Livingston food bank and improper warnings about hazardous stunts.
    — Pat Saperstein, Variety, 10 Oct. 2026
Definition of warning
Noun
  • Plus, Swifties saw Swift and Alwyn’s refusal to make joint public appearances as a red flag.
    — Lizzie Lanuza, StyleCaster, 7 Oct. 2026
  • DraftKings told Pearson that if a customer’s behavior raises too many red flags, the company will proactively close an account.
    — ProPublica, ProPublica, 6 Oct. 2026
Definition of red flag
Noun
  • In a sign of how serious the warnings are, dozens of Waffle Houses in the Florida Panhandle were closed, according to the company's website.
    — Arkansas Online, Arkansas Online, 10 Oct. 2026
  • There have been multiple rallies and protests outside of WNBA games, including fans inside arenas holding pro-trans and anti-trans signs.
    — CT Jones, Rolling Stone, 10 Oct. 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 14 Oct. 2026.

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