letters

noun

1. (form-of, plural)plural of letter
2. Literature (school subject).

   “Rickert was the first woman (and second individual) to be awarded a Ph.D. in English letters and philology with that academic honor at the University of Chicago.”

3. The liberal arts, humanities, learning (broad accumulated cultural knowledge).

   “Though architecture in ancient Rome was not generally considered to belong to the artes liberales, Vitruvius easily qualified as a man of letters because of his wide learning.”

   “He read widely throughout these days, for his father had a taste for modern letters, and new books lay littered about the rooms.”

verb

1. (form-of, indicative, present, singular, third-person)third-person singular simple present indicative of letter