roo needs no unscrambling at all — the three-letter word is already the strongest play its own letters allow, banking 3 points in Scrabble as it stands. In all, 2 valid words come out of this rack, grouped by length below and checked for Words With Friends as well as Scrabble.
roo is the highest-scoring word from roo, worth 3 points in Scrabble. The top 2 of 2 words are shown here, with the full list organized by length below.
Only one three-letter word uses the letters in roo — and it is roo itself. No unscrambling is needed: the word is already playable as written, worth 3 points in Scrabble.
Unscrambling roo produces exactly one two-letter word: or. It is an everyday word and an easy play, worth 2 points in Scrabble.
roo is in the NWL, the official Scrabble word list for North America, but not in the Words With Friends dictionary, so it plays in Scrabble only.
roo is the only three-letter word the same letters produce. No arrangement of the same tiles scores higher in Scrabble, so playing roo unchanged also takes the maximum points these letters offer.
The highest-scoring play from these letters is roo, worth 3 points in Scrabble, and no other word from roo earns more points in Scrabble. Words With Friends prices the same letters differently, so the top of the list changes on a Words With Friends board. Both scores count tile values only and exclude premium squares.
The letters in roo produce 2 valid words in the Scrabble and Words With Friends dictionaries. The word count by length is: 1 three-letter word and 1 two-letter word.