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Webster's Dictionary (1865)

2 entries under this word

Ninth

Ninth, a.

adjective

a. [A-S. nigōdha, nigudha, nigeotha; but ninth in English is formed directly from nine; O. H. Ger. niunto, M. H. Ger. niunte, N. H. Ger. neunte, Goth. niunda, Sw. nionde, Dan. niende.]

  1. Following the eighth and preceding the tenth; coming after eight of the same class.
  2. Constituting or being one of nine equal parts into which any thing is divided.

Ninth, n.

noun

n. 1. The quotient of a unit divided by nine; one of nine equal parts. 2. (Mus.) (a.) An interval containing an octave and a second. (b.) A chord consisting of the common chord, with the eighth advanced one note.