The letters in SITTING make 38 words of two letters or more. The longest is SITTING at 7 letters, and the highest-scoring is SITTING at 8 points.
No other single word uses all 7 letters of SITTING. SITTING has 7 letters: 2 vowels and 5 consonants, worth 8 points before any board bonuses.
7-letter words 1
6-letter words 2
gittin7siting7
5-letter words 6
intis5sting6stint5tings6tints5titis5
4-letter words 13
gins5gist5gits5inti4nisi4nits4sign5sing5snit4ting5tins4tint4titi4
3-letter words 9
gin4git4ins3its3nit3sin3sit3tin3tis3
2-letter words 7
gs3in2is2it2si2ti2ts2
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.