Unscrambling the letters in THEN makes 14 valid words. Here is the full breakdown — longest words, top Scrabble scores, and every word grouped by length (highest-scoring first).
14total words
HENTlongest (4 letters)
HENTtop score (7 pts)
1 / 3vowels / consonants
Word lengths: 4-letter (2), 3-letter (7), 2-letter (5).