/ Dictionary / Index S St. John's Eve: Meaning and Definition of Find definitions for: St. John's Eve. Pronunciation: [key] SeeAlso called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. St. John's Day St.-John's-wort Related Content Daily Word Quiz: philanthropy Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language