The letters in EXPERTS make 75 words of two letters or more. The longest is EXPERTS at 7 letters, and the highest-scoring is EXPERTS at 16 points.
No other single word uses all 7 letters of EXPERTS. EXPERTS has 7 letters: 2 vowels and 5 consonants, worth 16 points before any board bonuses.
7-letter words 1
6-letter words 7
5-letter words 20
ester5exert12peers7perse7peter7prees7prese7prest7reest5reset5rexes12speer7spree7steep7steer5stere5stree5strep7terse5trees5
4-letter words 22
erst4exes11peer6pees6pert6pest6pets6pree6prex13rees4reps6rest4rete4rets4seep6seer4sept6sere4sext11step6tees4tree4
3-letter words 16
ere3ers3ert3pee5per5pes5pet5ree3rep5res3ret3rex10see3ser3set3tee3
2-letter words 9
er2es2et2ex9pe4ps4re2rs2ts2
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.