The letters in FINALLY make 54 words of two letters or more. The longest is FINALLY at 7 letters, and the highest-scoring is FINALLY at 13 points.
No other single word uses all 7 letters of FINALLY. FINALLY has 7 letters: 2 vowels and 5 consonants, worth 13 points before any board bonuses.
7-letter words 1
6-letter words 1
infall9
5-letter words 4
filly11final8flail8inlay8
4-letter words 20
alif7ally7anil4ayin7fail7fain7fall7fila7fill7flan7flay10illy7inly7lain4lily7liny7naif7nail4nill4yill7
3-letter words 16
ail3ain3all3ani3any6fan6fay9fil6fin6fly9ill3lay6lin3nay6nil3yin6
2-letter words 12
ai2al2an2ay5fa5if5in2la2li2ln2na2ya5
Words are from our open word list and include some game-only words. Rude words are left out of this page; the unscrambler shows every valid word, lets you add blank tiles and filter by length.