/ Dictionary / Index J Jefferson City: Meaning and Definition of Find definitions for: Jef'ferson Cit'y Pronunciation: [key] a city in and the capital of Missouri, in the central part, on the Missouri River. 33,619. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Jefferson Jefferson Davis's Birthday 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