from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The ordinal number matching the number nine in a series.
- n. One of nine equal parts.
- n. Music A harmonic or melodic interval of an octave and a second.
- n. Music The tone at the upper limit of such an interval.
- n. Music A chord consisting of a root with its third, seventh, and ninth.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- adj. The ordinal form of the number nine.
- n. The person or thing in the ninth position.
- n. One of nine equal parts of a whole.
from the GNU version of the Collaborative International Dictionary of English
- adj. Following the eight and preceding the tenth; coming after eight others.
- adj. 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.
from The Century Dictionary and Cyclopedia
- Next in order or rank after the eighth, or before the tenth: an ordinal numeral: as, the ninth row; the ninth regiment.
- Being one of nine: as, a ninth part.
- n. A ninth part; the quotient of unity divided by nine.
- n. In music, the interval, whether melodic or harmonic, between any tone and a tone one octave and one degree distant from it; also, a tone distant by such an interval from a given tone; a compound second.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- adj. coming next after the eighth and just before the tenth in position
- n. position nine in a countable series of things
- n. one part in nine equal parts
Middle English ninthe, from Old English nigonthe, from nigon, nine; see newn̥ in Indo-European roots.(American Heritage® Dictionary of the English Language, Fourth Edition)
nine + -th (Wiktionary)