/ Thesaurus / D Synonyms of doctor of humane letters Find synonyms for: Noun1. Doctor of Humane Letters, honorary degree, honoris causausage: an honorary degree in lettersWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: reclusive Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language