Yes, judo is a Scrabble word!
...and is worth 12 points in Scrabble, and 15 points in Words with Friends
judo
Noun
1. A sport adapted from jujitsu (using principles of not resisting) and similar to wrestling; developed in Japan
What Scrabble words can I make with the letters in judo?
3 Letter Words
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Words that can be created with an extra letter added to judo:
S:judos