- (a.) Constituting or being one of nine equal parts into which anything is divided.
- (n.) The quotient of one divided by nine; one of nine equal parts of a thing; the next after the eighth.
- (a.) Following the eight and preceding the tenth; coming after eight others.
- (n.) A chord of the dominant seventh with the ninth added.
- (n.) An interval containing an octave and a second.
- (a.) Constituting or being one of nine equal parts into which anything is divided.
- (n.) A chord of the dominant seventh with the ninth added.
- (n.) The quotient of one divided by nine; one of nine equal parts of a thing; the next after the eighth.
- (n.) An interval containing an octave and a second.
- (a.) Following the eight and preceding the tenth; coming after eight others.
Webster's Revised Unabridged Dictionary
| APA | Webster's. (2011). ninth. Retrieved September 22, 2026, from http://smartdefine.org/ninth/definitions/2036812 |
| Chicago | Webster's. 2011. "ninth" http://smartdefine.org/ninth/definitions/2036812 (accessed September 22, 2026). |
| Harvard | Webster's 2011, ninth, Smart Define, viewed 22 September, 2026, <http://smartdefine.org/ninth/definitions/2036812>. |
| MLA | Webster's. "ninth" 27 May 2011. Web. 22 September 2026. <http://smartdefine.org/ninth/definitions/2036812> |