red flag
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red flag¹
noun red flags
- Used other than figuratively or idiomatically: see red, flag.
-
A cue, warning, or alert; a sign or signal that something is wrong.
Improper formatting is a red flag that you should look for other problems with the data.
Opposite: green flag
-
A flag used as a signal that the race must be stopped immediately (and possibly restarted).
Typically, a red flag is used when it rains or when the safety of the clean-up crews is in danger because there is too much debris or oil on the track.
Opposite: green flag
-
A flag formerly used by a railway guard to warn the driver not to start the train.
Opposite: green flag
- A red or predominantly red flag symbolizing a left-wing ideological movement, such as socialism, communism or the labour movement. Some chanted: "Pride, pride, national pride" and "Poland should be national not red or rainbow-coloured", in a reference to the red flag of the Soviet Union and the symbol of gay pride.
- Something that will enrage a particular person; a red rag.
Red Flag²
proper noun
- A series of advanced, realistic air combat training exercises conducted by the U.S. Air Force.
- A socialist song, emphasising the sacrifices and solidarity of the international labor movement.
-
Synonym of red flag warning
Similar: red flag warning
Translations
Every language
noun a cue, warning, or alert; a sign or signal that something is wrong
| Español | bandera roja, señal de alarma, alerta |
|---|---|
| Français | avertissement, signal d'alarme, mauvais signe |
| Deutsch | Warnsignal, Warnhinweis |
noun left-wing symbol
| Español | bandera roja |
|---|---|
| 한국어 | 적기 jeokgi, 붉은기 bulgeun'gi |
| 日本語 | 赤旗 akahata |
| 中文 | 紅旗 /红旗 hóngqí |
| Português | bandeira vermelha |
| Français | drapeau rouge |
| Deutsch | rote Fahne |
| Italiano | bandiera rossa |
| Русский | кра́сный флаг krásnyj flag, кра́сное зна́мя krásnoje známja |
| עברית | דגל אדום dégel adóm |
Talk about this word "red flag." Wiktionary, via Micwyn, micwyn.com/word/red%20flag. Accessed 6 Nov. 2026. red flag. (n.d.). In Wiktionary, via Micwyn. Retrieved November 6, 2026, from https://micwyn.com/word/red%20flag "red flag." Wiktionary, via Micwyn. Accessed November 6, 2026. https://micwyn.com/word/red%20flag.Cite this
@misc{red_flag_2026,
title = {red flag},
howpublished = {Wiktionary, via Micwyn},
year = {2026},
url = {https://micwyn.com/word/red%20flag},
urldate = {2026-11-06}
}
