/ Dictionary / Index S SS.D.: Meaning and Definition of Find definitions for: SS.D. Pronunciation: [key] Most Holy Lord: a title of the pope. S.S.D. Pronunciation: [key] Doctor of Sacred Scripture. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. S-scroll SSE Related Content Daily Word Quiz: lunar Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language