Ninth definition

nīnth
The ordinal number matching the number nine in a series.
noun
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The ordinal form of the number nine.
adjective
1
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The person or thing in the ninth position.
noun
1
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One of nine equal parts of a whole.
noun
1
0
Designating any of the nine equal parts of something.
adjective
1
1
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The one following the eighth.
noun
1
1
A harmonic or melodic interval of an octave and a second.
noun
0
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The tone at the upper limit of such an interval.
noun
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A chord consisting of a root with its third, seventh, and ninth.
noun
0
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Any of the nine equal parts of something;19
noun
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An interval in pitch of an octave and a second.
noun
0
0
A tone separated from another by such an interval.
noun
0
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The combination of two such tones.
noun
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In the ninth place, rank, group, etc.
adverb
0
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One of nine equal parts.
noun
0
1
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Preceded by eight others in a series; 9th.
adjective
0
1

Other Word Forms

Noun

Singular:
ninth
Plural:
ninths

Origin of ninth

  • Middle English ninthe from Old English nigonthe from nigon nine newn̥ in Indo-European roots

    From American Heritage Dictionary of the English Language, 5th Edition

  • Middle English ninthe, from Old English nigoþa (nigonthe), from nigon (“nine")

    From Wiktionary

Ninth Sentence Examples

  • After the success of the Rocket, the Stephensons received orders to build seven more engines, which were of very similar design, though rather larger, being four-wheeled engines, with the two driving wheels in front and the cylinders behind; and in October 1830 they constructed a ninth engine, the Planet, also for the Liverpool & Manchester railway, which still more closely resembled the modern type, since the driving wheels were placed at the fire-box end, while the two cylinders were arranged under the smoke-box, inside the frames.

  • Having rejoined the Republican party in 1876, he was United States marshal for Massachusetts from 187 9 until 1888, when for the ninth time he was elected to Congress.

  • Each of the four faces of each rod contains multiples of one of the nine digits, and is similar to one of the slips just described, the first rod containing the multiples of o, I, 9, 8, the second of o, 2, 9, 7, the third of o, 3, 9, 6, the fourth of 0, 4, 9, 5, the fifth of I, 2, 8, 7, the sixth of I, 3, 8, 6, the seventh of I, 4, 8, 5, the eighth of 2, 3, 7, 6, the ninth of 2, 4, 7, 5, and the tenth of 3, 4, 6, 5.

  • See a paper by Madison Grant, entitled "The Rocky Mountain Goat," published in the ninth annual report of the New York Zoological Society (1905).

  • An example of this is found in the ninth canon of Chalcedon, which also illustrates the enforcement upon a clerical plaintiff in dispute with a brother cleric of that recourse to the arbitration of their ecclesiastical superior already mentioned.

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Words near ninth in the Dictionary