1. Following the eight and preceding the tenth; coming after eight others.
2. Constituting or being one of nine equal parts into which anything is divided.
1. The quotient of one divided by nine; one of nine equal parts of a thing; the next after the eighth.
2. Mus. (a) An interval containing an octave and a second. (b) A chord of the dominant seventh with the ninth added.
adj : coming next after the eighth and just before the tenth in
position [syn: 9th]
n 1: position nine in a countable series of things; "going into
the ninth they were a run ahead"
2: a ninth part [syn: one-ninth]