/ Dictionary / Index J J, j: Meaning and Definition of Find definitions for: J Pronunciation: ( jā), [key] — pl. J's Js, j's js. the tenth letter of the English alphabet, a consonant. any spoken sound represented by the letter J or j, as in just, major, or rajah. something having the shape of a a written or printed representation of the letter J or j. a device, as a printer's type, for reproducing the letter J or j. J Pronunciation: [key] Jewish. joule; joules. J Pronunciation: [key] — Symbol. the tenth in order or in a series, or, when I is omitted, the ninth. (sometimes l.c.) the medieval Roman numeral for 1. Cf. Roman numerals. j Pronunciation: [key] — Symbol. a unit vector on the y-axis of a coordinate system. the imaginary number &minus1sqrootover;. J. Pronunciation: [key] Jack. Journal. Judge. Justice. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. izzat ja* Related Content Daily Word Quiz: inutiae Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language