Breadcrumb Home > Dictionary > Index C Congress of Industrial Organizations: Meaning and Definition of Find definitions for: Con'gress of Indus'trial Organiza'tions Pronunciation: [key] a federation of affiliated industrial labor unions, founded 1935 within the American Federation of Labor but independent of it 1938–55. Abbr.: C.I.O., CIO Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. congressmember Congress of Vienna TrendingHere are the facts and trivia that people are buzzing about. The Book of 1 Corinthians: Summary Current Events This Week: June 2023 Languages Spoken in Each Country of the World Aesop's Fables: Aesop's Fables Milestones in Environmental Protection The 12 Labors of Hercules (In Order) ✖ Related Content Daily Word Quiz: concatenate Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language