The letters in FEEDBACK make 73 words of two letters or more. The longest is FEEDBACK at 8 letters, and the highest-scoring is FEEDBACK at 20 points.
No other single word uses all 8 letters of FEEDBACK. FEEDBACK has 8 letters: 3 vowels and 5 consonants, worth 20 points before any board bonuses.
8-letter words 1
6-letter words 6
5-letter words 6
ackee11baked12caked12decaf11faced11faked13
4-letter words 26
abed7aced7akee8back12bade7bake10bead7beak10beck12beef9cade7cafe9cake10cede7dace7deaf8deck11deke9eked9face9fade8fake11feck13feed8kaed9keef11
3-letter words 23
ace5bad6bed6bee5cab7cad6cee5dab6dak8deb6dee4eek7eke7fab8fad7fed7fee6kab9kae7kaf10kea7ked8kef10
2-letter words 11
ab4ad3ae2ba4be4de3ed3ef5fa5ka6kb8
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.