The letters in ASSURING make 148 words of two letters or more. The longest is ASSURING at 8 letters, and the highest-scoring is ASSURING at 9 points.
No other single word uses all 8 letters of ASSURING. ASSURING has 8 letters: 3 vowels and 5 consonants, worth 9 points before any board bonuses.
8-letter words 1
7-letter words 1
airguns8
6-letter words 7
arsing7assign7grains7rasing7sarins6sugars7unrigs7
5-letter words 42
airns5argus6arsis5auris5gains6garni6gaurs6gauss6girns6gnars6grain6grans6grass6grins6guans6guars6naris5nisus5ragis6rains5ranis5rings6risus5ruing6ruins5rungs6sains5sangs6sarin5saris5sasin5signs6sings6sinus5snags6snugs6sugar6suing6suras5unais5unrig6using6
4-letter words 51
agin5ains4airn4airs4anis4gain5gars5gaun5gaur5gins5girn5gnar5gnus5gran5grin5guan5guar5nags5ragi5rags5rain4rang5rani4rias4rigs5ring5rins4ruga5rugs5ruin4rung5runs4sags5sain4sang5sans4sari4sign5sing5sins4sirs4snag5snug5sris4sung5suns4sura4unai4unis4urns4ursa4
3-letter words 31
ain3air3ais3ani3ars3gan4gar4gas4gin4gnu4ins3nag4nus3rag4ran3ras3ria3rig4rin3rug4run3sag4sau3sin3sir3sis3sri3sun3uni3uns3urn3
2-letter words 15
ag3ai2an2ar2as2gs3in2is2na2nu2rs2si2ss2un2us2
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.