Synonyms of red flag
- 1. red flag, flag, signal flag, alarm, alert, warning signal, alarum
- usage: a flag that serves as a warning signal; "we didn't swim at the beach because the red flag was up"
- 2. red flag, emblem, allegory
- usage: the emblem of socialist revolution
- 3. red flag, annoyance, annoying, irritation, vexation
- usage: something that irritates or demands immediate action; "doing that is like waving a red flag in front of a bull"
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