ninth /ˈnaɪn(t)θ/
 第九九分之一
 Ninth a.
 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.
 Ninth, n.
 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.
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 ninth
      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]