The letters in PRINTING make 44 words of two letters or more. The longest is PRINTING at 8 letters, and the highest-scoring is PRINTING at 11 points.
No other single word uses all 8 letters of PRINTING. PRINTING has 8 letters: 2 vowels and 6 consonants, worth 11 points before any board bonuses.
8-letter words 1
7-letter words 1
trining8
6-letter words 4
pining9riping9tining7tiring7
5-letter words 5
gript8innit5iring6piing8print7
4-letter words 15
girn5girt5grin5grip7grit5inti4ping7pint6pirn6prig7ring5ting5tipi6trig5trip6
3-letter words 14
gin4gip6git4inn3nip5nit3pig6pin5pit5rig4rin3rip5tin3tip5
2-letter words 4
in2it2pi4ti2
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.