dum and mud tie for the highest Scrabble score from dum at 6 points. The top 4 of 4 words are shown here, with the full list organized by length below.
There are 2 three-letter words hiding in dum: one comes from rearranging its letters, and dum itself is already a playable word with no unscrambling required. If a familiar word is all you need, start with mud. For points, the strongest plays are dum and mud — each worth 6 points in Scrabble.
Swap a single tile in dum and you get a different three-letter rack with its own word list. None of these appear in the results above — they share 2 of the 3 letters, not all of them.
dum 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.
dum is one of two three-letter words the same letters produce. No arrangement of the same tiles scores higher in Scrabble, so playing dum unchanged also takes the maximum points these letters offer.
The highest-scoring plays from these letters are dum and mud, worth 6 points in Scrabble, and nothing else built from dum 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 dum produce 4 valid words in the Scrabble and Words With Friends dictionaries. The word count by length is: 2 three-letter words and 2 two-letter words.