/ Dictionary / Index S Second Adventist: Meaning and Definition of Find definitions for: Sec'ond Ad'ventist Pronunciation: [key] Adventist (def. 1). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Second Advent Second Amendment 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