The letters in COLLECT make 26 words of two letters or more. The longest is COLLECT at 7 letters, and the highest-scoring is COLLECT at 11 points.
No other single word uses all 7 letters of COLLECT. COLLECT has 7 letters: 2 vowels and 5 consonants, worth 11 points before any board bonuses.
7-letter words 1
6-letter words 1
collet8
5-letter words 1
cello7
4-letter words 9
cell6celt6clot6cole6colt6cote6tell4tole4toll4
3-letter words 9
cel5col5cot5ell3let3lot3ole3tel3toe3
2-letter words 5
el2et2lo2oe2to2
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.