How do you spell mrr?

"Mrr" is typically used to represent a cat's purr. There's no standard spelling for it, and it's more of a sound than a word.

Here are some common variations:

* Meow - A more common cat sound, but can sometimes be used as a playful representation of a purr.

* Purr - The most accurate way to describe the sound.

* Mrrow - A less common variation that captures the sound more accurately.

* Mrrr - A close approximation of the purr sound.

Ultimately, you can use whatever spelling you prefer to represent a cat's purr.