/ Dictionary / Index J Jewish Defense League: Meaning and Definition of Find definitions for: Jew'ish Defense' League" Pronunciation: [key] an organization of militant Jewish activists, founded in 1968 in the U.S. to combat anti-Semitism and defend Jewish interests worldwide. Abbr.: JDL Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Jewish calendar Jewishness Related Content Daily Word Quiz: pugilist Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language