Select the most appropriate meaning of the given idiom.
Once in a blue moon.
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. Very rare.
Very ancient: This doesn't accurately capture the meaning of the idiom, which refers to something that happens very rarely, not something that is very old.
Very colorful: This doesn't accurately capture the meaning of the idiom. "Once in a blue moon" doesn't refer to something being colorful but rather to something happening infrequently.
Very rare: This is the correct meaning of the idiom. It suggests that something occurs very infrequently or rarely.
Very high: This doesn't accurately capture the meaning of the idiom. "Once in a blue moon" doesn't refer to something high or elevated but rather to something rare or uncommon.
So, the correct meaning is "Very rare."