DULFTIU is not a word, but unscramble DULFTIU and 31 words appear: the best is DUTIFUL at 11 points. The 7 letters split into 3 vowels and 4 consonants.
D2U12L12F4T1I1U12
Tile values: Scrabble, then Words With Friends in blue if different.
Counting the words from DULFTIU by length: 1 with 7 letters, 1 with 5, 5 with 4, 16 with 3 and 8 with 2. None has 6 letters.
DUTIFUL is the only one of the 7-letter words in DULFTIU; it scores 11 points.
Just 1 of the 5-letter words made with DULFTIU letters: FLUID, for 9 points.
Short meanings for the 8 highest-scoring answers, starting with DUTIFUL (11 points).
Score: Scrabble · Words With Friends
DULFTIU is not playable as it is in any of the three, yet its letters form 31 words that are.
| Game | Scrabble US | Scrabble UK | Words With Friends* |
|---|---|---|---|
| DULFTIU itself | No | No | No |
| Answers accepted (of 31) | 26 | 30 | 24 |
* The Words With Friends base list; the game adds and drops some words.
Scrabble US and Words With Friends* skip 4 of them: LUIT, TID, DI and UTU. Words With Friends* skips 2 of them: DIF and LUD. Scrabble US, Scrabble UK and Words With Friends* skip 1 of them: FI.