General Knowledge · General Awareness
What is the meaning of the common English idiom 'once in a blue moon'?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1To describe something that is extremely expensive
- 2To happen or do something very rarely✓
- 3To witness a rare astronomical event involving a blue moon
- 4To calm down or become peaceful
Correct answer
To happen or do something very rarely
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