We found 5 definitions of red flag from 3 different sources.
Noun |
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red flag - a flag that serves as a warning signal; "we didn't swim at the beach because the red flag was up" | ||
signal flag, flag a conspicuously marked or shaped tail | ||
red flag - something that irritates or demands immediate action; "doing that is like waving a red flag in front of a bull" | ||
red flag - the emblem of socialist revolution |