The letters in EXERCISE make 64 words of two letters or more. The longest is EXERCISE at 8 letters, and the highest-scoring is EXERCISE at 17 points.
No other single word uses all 8 letters of EXERCISE. EXERCISE has 8 letters: 4 vowels and 4 consonants, worth 17 points before any board bonuses.
8-letter words 1
6-letter words 4
cerise8creese8excise15sexier13
5-letter words 12
ceres7cires7crees7cries7eerie5execs14resee5rexes12rices7scree7siree5xeric14
4-letter words 18
cees6cere6cire6cree6cris6exec13exes11ices6ires4recs6rees4reis4rice6rise4seer4sere4sice6sire4
3-letter words 20
cee5cis5ere3ers3ice5ire3rec5ree3rei3res3rex10sec5see3sei3ser3sic5sir3six10sri3xis10
2-letter words 9
cs4er2es2ex9is2re2rs2si2xi9
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.