/ Dictionary / Index J joint stock: Meaning and Definition of Find definitions for: joint' stock' Pronunciation: [key] stock or capital divided into a number of shares. a pool of stock held in common. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. joint session joint-stock company 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