Unscrambling VALIDITY gives 66 words. VALIDITY is the longest, and VALIDITY scores the most at 15 points.
No other single word uses all 8 letters of VALIDITY. VALIDITY has 8 letters: 3 vowels and 5 consonants, worth 15 points before any board bonuses.
8-letter words 1
7-letter words 1
avidity14
6-letter words 3
avidly13daylit10tidily10
5-letter words 9
daily9davit9iliad6laity8litai5livid9tidal6valid9vital8
4-letter words 21
adit5alit4avid8davy11dial5dita5diva8idly8idyl8ilia4lady8laid5lati4tail4tali4tidy8tivy10vail7vial7vita7yald8
3-letter words 19
aid4ail3ait3alt3dal4day7dit4ivy9lad4lat3lav6lay6lid4lit3tad4tav6til3vat6via6
2-letter words 12
ad3ai2al2at2ay5id3it2la2li2ta2ti2ya5
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.