/ Dictionary / Index J joint committee: Meaning and Definition of Find definitions for: joint' commit'tee Pronunciation: [key] — Govt. Govt. a committee appointed from both houses of a bicameral legislature in order to reach a compromise on their differences concerning a particular issue. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Joint Chiefs of Staff joint custody Related Content Daily Word Quiz: vertigo Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language