vocabularyLearn English Online - Idiomatic Expressions

Definition of Idiomatic Expressions


What does once in a blue moon mean?

Meaning of idioms with examples...

once in a blue moon

The phrase once in a blue moon is an idiomatic expression that means not very often or very rarely.

Blue moon refers to an additional full moon that appears very rarely during a year.

The phrase has nothing to do with the actual color of the moon. It just means that something happens very rarely.


Once in a blue moon, her husband brings her a gift.

She sees him once in a blue moon.

This idiom is in the time category

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