/ Dictionary / Index N Ninth Commandment: Meaning and Definition of Find definitions for: Ninth' Command'ment Pronunciation: [key] “Thou shalt not bear false witness against thy neighbor”: ninth of the Ten Commandments. Cf. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. ninth chord Ninth of Av Related Content Daily Word Quiz: spectral Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language