Mu is valid Scrabble Word

Is mu a scrabble word?
Official Scrabble Players Dictionary YES
Official Tournament and Club Word List YES
Collins Scrabble Words YES
Is mu valid Words with Friends?
Words with Friends YES

Definitions for MU in dictionary:

Words related to MU

mus5

How to use MU in a sentence

Find what other words can be done using letters: "mu"
https://scrabble-word.com/finder/mu
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