The letters in LETTER make 24 words of two letters or more. The longest is LETTER at 6 letters, and the highest-scoring is LETTER at 6 points.
No other single word uses all 6 letters of LETTER. LETTER has 6 letters: 2 vowels and 4 consonants, worth 6 points before any board bonuses.
6-letter words 1
5-letter words 1
relet5
4-letter words 8
leer4leet4reel4rete4teel4tele4tree4tret4
3-letter words 10
eel3ere3ert3lee3let3ree3ret3tee3tel3tet3
2-letter words 4
el2er2et2re2
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.