The letters in ENGINEERS make 145 words of two letters or more. The longest is ENGINEERS at 9 letters, and the highest-scoring is ENGINEERS at 10 points.
No other single word uses all 9 letters of ENGINEERS. ENGINEERS has 9 letters: 4 vowels and 5 consonants, worth 10 points before any board bonuses.
9-letter words 1
8-letter words 6
7-letter words 6
engines8eserine7ginners8greenie8greisen8reneges8
6-letter words 24
engine7ensign7genies7genres7ginner7greens7inners6nereis6reigns7renege7renigs7renins6reseen6resign7seeing7seiner6serein6serene6serine6sering7signee7signer7singer7sinner6
5-letter words 34
eerie5egers6ernes5geese6genes6genie6genre6girns6green6grees6grins6inner5nines5reges6reign6reins5renes5renig6renin5resee5resin5rings6rinse5risen5segni6seine5sengi6serge6serin5siege6singe6siree5siren5sneer5
4-letter words 35
eger5egis5engs5ergs5erne4erns4gees5gene5gens5gien5gies5gins5girn5gree5grin5inns4ires4nene4nine4rees4regs5rein4reis4rigs5ring5rins4rise4seen4seer4sene4sere4sign5sine4sing5sire4
3-letter words 29
eng4ens3ere3erg4ern3ers3gee4gen4gie4gin4gre4inn3ins3ire3nee3ree3reg4rei3res3rig4rin3see3seg4sei3sen3ser3sin3sir3sri3
2-letter words 10
en2er2es2gs3in2is2ne2re2rs2si2
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.