/ Dictionary / Index J joint session: Meaning and Definition of Find definitions for: joint' ses'sion Pronunciation: [key] a joint meeting, as of both houses of a bicameral legislature: The president addressed a joint session of Congress on the crisis in Central America. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. joint runner joint stock Related Content Daily Word Quiz: secular Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language