Meaning Of Ninth

a.

Following the eight and preceding the tenth; coming after eight others.

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.

n.

An interval containing an octave and a second.

n.

A chord of the dominant seventh with the ninth added.