red flag

noun

Definition of red flagnext
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

Synonyms & Similar Words

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Antonyms & Near Antonyms

Example Sentences

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.
Recent Examples of red flag By Thursday, as the red flag warning was active, Miami-Dade Fire Rescue told the Miami Herald the blaze was burning 24,000 acres of brush — with 30% containment. — Devoun Cetoute, Miami Herald, 21 Mar. 2025 Troubled history The property has been at the center of controversy for the last year, after tenants started raising red flags last spring about living conditions at the apartment building. — Robert A. Cronkleton, Kansas City Star, 21 Mar. 2025 The severe weather outbreak is all part of a major cross-country storm system that is also prompting fire danger and red flag warnings across the Plains. — Melissa Griffin, ABC News, 15 Mar. 2025 This warning is in effect until 9 p.m. In Texas, what does a red flag warning mean? — Star-Telegram Weather Bot, Fort Worth Star-Telegram, 14 Mar. 2025 See All Example Sentences for red flag
Recent Examples of Synonyms for red flag
  1. red light
  2. warning
  3. sign
Noun
  • State police said the driver later allegedly blew through a red light at the intersection of Kelly Road and Route 83 before continuing north on Route 83, the warrant affidavits said.
    — Justin Muszynski, Hartford Courant, 27 Mar. 2025
  • Bosworth reveals that she's been obsessed with red light therapy and has gotten her husband into the trend.
    — Michelle Lee, People.com, 24 Mar. 2025
Definition of red light
Noun
  • The Federal Bureau of Investigation and the Cybersecurity and Infrastructure Security Agency recently issued a joint advisory warning that two-factor authentication needed to be activated for all webmail and VPN accounts as a matter of urgency.
    — Davey Winder, Forbes, 22 Mar. 2025
  • Israel’s military said Friday that its forces were planning fresh assaults into three neighborhoods west of Gaza City and issued warnings on social media for Palestinians to evacuate the areas.
    — Bassem Mroue and Wafaa Shurafa, Los Angeles Times, 22 Mar. 2025
Definition of warning
Noun
  • The tulip is considered one of the biggest signs of warmer months on the horizon and as such, tulip festivals have become a very popular attraction all over the world.
    — Kaitlyn McInnis, Forbes, 23 Mar. 2025
  • Aside from waiting until the average last frost date has passed, the seedlings will give signs when they can be transplanted outside.
    — Lauren David, Southern Living, 23 Mar. 2025
Definition of sign

Browse Nearby Words

red-eyes
red flag
red flags
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Cite this Entry

“Red flag.” Merriam-Webster.com Thesaurus, Merriam-Webster, https://www.merriam-webster.com/thesaurus/red%20flag. Accessed 2 Apr. 2025.

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