The letters in INSTANT make 61 words of two letters or more. The longest is INSTANT at 7 letters, and the highest-scoring is INSTANT at 7 points.
No other single word uses all 7 letters of INSTANT. INSTANT has 7 letters: 2 vowels and 5 consonants, worth 7 points before any board bonuses.
7-letter words 1
6-letter words 3
taints6tanist6titans6
5-letter words 9
antis5saint5satin5stain5stint5tains5taint5tints5titan5
4-letter words 17
ains4aits4anis4anti4ants4inns4nans4nits4sain4sati4snit4stat4tain4tans4tats4tins4tint4
3-letter words 19
ain3ais3ait3ani3ant3att3inn3ins3its3nan3nit3sat3sin3sit3tan3tas3tat3tin3tis3
2-letter words 12
ai2an2as2at2in2is2it2na2si2ta2ti2ts2
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.