/ Dictionary / Index J Jefferson Davis's Birthday: Meaning and Definition of Find definitions for: Jef'ferson Da'vis's Birth'day Pronunciation: [key] June 3 or the first Monday in June, observed as a legal holiday in some Southern states. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Jefferson City Jefferson Day Related Content Daily Word Quiz: panacea Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language