Hidden inside suit sit suit and tuis, four-letter plays tied at the top of this rack with 4 points in Scrabble apiece. In all, 13 valid words come out of this rack, grouped by length below and checked for Words With Friends as well as Scrabble.
Unscramble ISTU, TUSI or TISU and you get the same 4 letters as SUIT: so the words from SUIT listed below are the words from those scrambles too.
suit and tuis tie for the highest Scrabble score from suit at 4 points. The top 10 of 13 words are shown here, with the full list organized by length below.
There are 2 four-letter words hiding in suit: one comes from rearranging its letters, and suit itself is already a playable word with no unscrambling required. If a familiar word is all you need, start with suit. For points, the strongest plays are suit and tuis — each worth 4 points in Scrabble.
Swap a single tile in suit and you get a different four-letter rack with its own word list. None of these appear in the results above — they share 3 of the 4 letters, not all of them.
suit is in the NWL, the official Scrabble word list for North America, and in the Words With Friends dictionary, so it's playable exactly as it stands and needs no unscrambling.
The 1-point gap between the two totals comes from the tile values themselves: Scrabble and Words With Friends price the same letters differently.
Dictionaries record ten senses for suit. Scrabble and Words With Friends score tiles and not meanings, so every sense below is worth the same 4 points on a Scrabble board:
suit is one of two four-letter words the same letters produce. No arrangement of the same tiles scores higher in Scrabble, so playing suit unchanged also takes the maximum points these letters offer.
The highest-scoring plays from these letters are suit and tuis, worth 4 points in Scrabble, and nothing else built from suit 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 suit produce 13 valid words in the Scrabble and Words With Friends dictionaries. The word count by length is: 2 four-letter words, 5 three-letter words and 6 two-letter words.