rubby needs no unscrambling at all — the five-letter word is already the strongest play its own letters allow, banking 12 points in Scrabble as it stands. In all, 11 valid words come out of this rack, grouped by length below and checked for Words With Friends as well as Scrabble.
rubby is the highest-scoring word from rubby, worth 12 points in Scrabble. The top 10 of 11 words are shown here, with the full list organized by length below.
Only one five-letter word uses the letters in rubby — and it is rubby itself. No unscrambling is needed: the word is already playable as written, worth 12 points in Scrabble.
Unscrambling rubby produces exactly one two-letter word: by. It is an everyday word and an easy play, worth 7 points in Scrabble.
Swap a single tile in rubby and you get a different five-letter rack with its own word list. None of these appear in the results above — they share 4 of the 5 letters, not all of them.
rubby 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.
rubby is the only five-letter word the same letters produce. No arrangement of the same tiles scores higher in Scrabble, so playing rubby unchanged also takes the maximum points these letters offer.
The highest-scoring play from these letters is rubby, worth 12 points in Scrabble, and no other word from rubby 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 rubby produce 11 valid words in the Scrabble and Words With Friends dictionaries. The word count by length is: 1 five-letter word, 3 four-letter words, 6 three-letter words and 1 two-letter word.