The letters in SURVIVING make 68 words of two letters or more. The longest is SURVIVING at 9 letters, and the highest-scoring is SURVIVING at 16 points.
No other single word uses all 9 letters of SURVIVING. SURVIVING has 9 letters: 3 vowels and 6 consonants, worth 16 points before any board bonuses.
9-letter words 1
7-letter words 1
virgins11
6-letter words 6
rising7riving10siring7unrigs7virgin10vising10
5-letter words 11
girns6grins6iring6rings6ruing6ruins5rungs6suing6unrig6using6virus8
4-letter words 22
gins5girn5gnus5grin5guvs8iris4nisi4rigs5ring5rins4rugs5ruin4rung5runs4sign5sing5snug5sung5unis4urns4vigs8vugs8
3-letter words 19
gin4gnu4guv7ins3nus3rig4rin3rug4run3sin3sir3sri3sun3uni3uns3urn3vig7vis6vug7
2-letter words 8
gs3in2is2nu2rs2si2un2us2
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.