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Vinony

red flag

noun

  1. metaphor for sign of problem
L310678 on Wikidata ↗

Wiktionary

name

  1. A series of advanced, realistic air combat training exercises conducted by the U.S. Air Force.
  2. A socialist song, emphasising the sacrifices and solidarity of the international labor movement.
  3. Synonym of red flag warning

noun

  1. A flag that is red, especially associated with leftist revolutionary ideologies.

    “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.”

  2. A flag that is red, especially associated with leftist revolutionary ideologies.

    “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.”

    “A red flag may be waved after a bad start or if a rider is injured. If you see a red flag, stop immediately and return to the starting line.”

  3. A cue, warning, or alert; a sign or signal that something is wrong.

    “Improper formatting is a red flag to look for other problems with the data.”

    “The first major red flag with Barbara was her use of emojis. After our second session, in which I listed my many negative qualities, she said my long-term mission was to accept myself – a statement she ended with a winking face.”

  4. Something that will enrage a particular person; a red rag.
  5. A flag formerly used by a railway guard to warn the driver not to start the train.