/ Dictionary / Index S summa cum laude: Meaning and Definition of Find definitions for: sum•ma cum lau•de Pronunciation: (soom'u koom lou'dā, -du, -dē sum'u kum lô'dē), [key] with highest praise: used in diplomas to grant the highest of three special honors for grades above the average. Cf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. summable summand Related Content Daily Word Quiz: procrastinate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language