red flag
noun, proper noun
Forms red flags
- noun Used other than figuratively or idiomatically: see red, flag.
- noun (chiefly figurative) 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.”
- noun (motor racing) A flag used as a signal that the race must be stopped immediately (and possibly restarted).
- noun (UK, rail transport, historical) A flag formerly used by a railway guard to warn the driver not to start the train.
- noun (politics) A red or predominantly red flag symbolizing a left-wing ideological movement, such as socialism, communism or the labour movement.
- noun (US, figurative) Something that will enrage a particular person; a red rag.
- proper noun (US, military) A series of advanced, realistic air combat training exercises conducted by the U.S. Air Force.
- proper noun (politics, music) A socialist song, emphasising the sacrifices and solidarity of the international labor movement.
- proper noun (US, meteorology) Synonym of red flag warning
Synonyms
Antonyms
Sources: Wiktionary — from the Wiktionary entry “red flag”, CC BY-SA 4.0. Details