Meanings
How to pronounce "blue moon":
AU
An extra full moon that appears in a subdivision of a year, namely: The third full moon in a season that contains four rather than the usual three full moons. The second of two full moons that occur in the same calendar month (a definition created by mistake in the 20th century).
The third full moon in a season that contains four rather than the usual three full moons.
The second of two full moons that occur in the same calendar month (a definition created by mistake in the 20th century).
The moon tinted towards blue as it appears in the sky, caused by dust or smoke in the atmosphere.
A long time.
Example Sentences
1
I only see her once in a blue moon.
2
He visits his parents' house once in a blue moon.
3
Getting a promotion that quickly happens once in a blue moon.
4
I can afford to treat myself to a fancy dinner once in a blue moon.
5
They go on vacation to a tropical destination once in a blue moon.
