The letters in CONFIRM make 65 words of two letters or more. The longest is CONFIRM at 7 letters, and the highest-scoring is CONFIRM at 14 points.
No other single word uses all 7 letters of CONFIRM. CONFIRM has 7 letters: 2 vowels and 5 consonants, worth 14 points before any board bonuses.
7-letter words 1
6-letter words 3
5-letter words 3
micro9minor7orcin7
4-letter words 24
cion6coif9coin6coir6coni6corf9corm8corn6fico9fino7firm9firn7foci9foin7form9from9icon6info7inro4iron4morn6noir4nori4norm6
3-letter words 23
con5cor5fin6fir6fon6for6fro6ion3mic7mir5moc7moi5mon5mor5nim5nom5nor3orc5rif6rim5rin3roc5rom5
2-letter words 11
if5in2mf7mi4mo4no2of5oi2om4on2or2
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.