The letters in JOINING make 20 words of two letters or more. The longest is JOINING at 7 letters, and the highest-scoring is JOINING at 15 points.
No other single word uses all 7 letters of JOINING. JOINING has 7 letters: 3 vowels and 4 consonants, worth 15 points before any board bonuses.
7-letter words 1
5-letter words 3
inion5jingo13jinni12
4-letter words 2
jinn11join11
3-letter words 8
gin4inn3ion3jig11jin10jog11nog4non3
2-letter words 6
go3in2jo9no2oi2on2
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.