Breadcrumb Home > Dictionary > Index T ten-four: Meaning and Definition of Find definitions for: ten-four Pronunciation: (ten'fôr', -fōr'), [key] — interj. CB Radio Slang. (used to express affirmation or confirmation). Cf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. tenfold ten-gallon hat TrendingHere are the facts and trivia that people are buzzing about. Jewish Holidays, 2010-2030 (A.M. 5770-5791) Western Christian Holidays, 2010-2030 12 Steps to a New Year New Year's Resolution to Slim Down? Martin Luther King Speeches Books of the Bible: Old Testament Books in Order ✖ Related Content Daily Word Quiz: limpid Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language