"Once ___ blue moon" NYT crossword answer is:
INA (3 letters length)The answer for "Once ___ blue moon" crossword clue is listed above to help you solve the puzzle you are currently working on.
Once in a blue moon is an idiom used to describe something that happens very rarely. It is believed to have originated in the mid-19th century and is often used to describe an event that is unlikely to happen again anytime soon. The phrase is often used to describe a unique or special occurrence, such as a beautiful sunset or a rare opportunity. It can also be used to describe a situation that is unlikely to happen again, such as a once in a lifetime experience.