Unscrambling EXTENSION gives 156 words. EXTENSION is the longest, and EXTENSION scores the most at 16 points.
No other single word uses all 9 letters of EXTENSION. EXTENSION has 9 letters: 4 vowels and 5 consonants, worth 16 points before any board bonuses.
9-letter words 1
7-letter words 6
intense7intones7sixteen14tennies7tension7toxines14
6-letter words 18
eosine6exines13extine13intone6nitons6nonets6onsite6sennet6sennit6sexton13sonnet6tennis6tennos6tenons6tonnes6toxine13toxins13xenons13
5-letter words 35
eosin5exine12exist12exits12exons12inset5neist5neons5nines5nites5niton5nixes12noise5nones5nonet5notes5onset5seine5sente5senti5seton5sexto12sixte12stein5steno5stone5teens5tenno5tenon5tense5tines5tones5tonne5toxin12xenon12
4-letter words 41
eons4exes11exit11exon11inns4into4ions4nene4neon4nest4nets4next11nine4nite4nits4nixe11noes4none4nose4note4ones4oxen11oxes11seen4sene4sent4sext11sine4site4snit4snot4sone4teen4tees4tens4ties4tine4tins4toes4tone4tons4
3-letter words 35
ens3eon3inn3ins3ion3its3nee3net3nit3nix10non3nos3not3oes3one3ons3ose3see3sei3sen3set3sin3sit3six10son3sot3sox10tee3ten3tie3tin3tis3toe3ton3xis10
2-letter words 20
en2es2et2ex9in2is2it2ne2no2oe2oi2on2os2ox9si2so2ti2to2ts2xi9
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.