red flag

Noun

Open English WordNet

Noun (3)

  1. a flag that serves as a warning signal“we didn't swim at the beach because the red flag was up”Type of flag, alarm
  2. the emblem of socialist revolutionType of emblem, allegory
  3. something that irritates or demands immediate action“doing that is like waving a red flag in front of a bull”Type of annoyance, annoying
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onerousadjective

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Webster's Dictionary (1913)

Red flag

a flag of a red color, displayed as a signal of danger or token of defiance; the emblem of anarchists.

From the entry Flag.

Red flag

. See under Flag.

From the entry Red.

Webster’s Revised Unabridged Dictionary (1913), from GCIDE 0.54

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