There are 9 11-letter words that start with 'stu'.
| stubbornest | stuccoworks | studentship |
| studiedness | stultifying | stumblebums |
| stumblingly | stuntedness | stupidities |
Note: These 9 11-letter words that start with 'stu' are found from the USA & Canada version of the tournament Scrabble word list.
Also see words start with stud, stup, stum, stun, stub, stuf, stur, stuc, stul, stut, stui.
4-letter words start with 'stu' (4)