The letters in EFFECTS make 32 words of two letters or more. The longest is EFFECTS at 7 letters, and the highest-scoring is EFFECTS at 15 points.
No other single word uses all 7 letters of EFFECTS. EFFECTS has 7 letters: 2 vowels and 5 consonants, worth 15 points before any board bonuses.
7-letter words 1
6-letter words 1
5-letter words 3
cetes7fetes8teffs11
4-letter words 12
cees6cete6effs10efts7fees7feet7fest7fete7fets7sect6tees4teff10
3-letter words 10
cee5eff9efs6eft6fee6fet6sec5see3set3tee3
2-letter words 5
cs4ef5es2et2ts2
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.