Ninth Definition
nīnth
noun
The one following the eighth.
Webster's New World
The ordinal number matching the number nine in a series.
American Heritage
Any of the nine equal parts of something;19
Webster's New World
An interval in pitch of an octave and a second.
Webster's New World
A tone separated from another by such an interval.
Webster's New World
Synonyms:
adjective
Preceded by eight others in a series; 9th.
Webster's New World
Designating any of the nine equal parts of something.
Webster's New World
Synonyms:
adverb
In the ninth place, rank, group, etc.
Webster's New World
Other Word Forms of Ninth
Noun
Singular:
ninth
Plural:
ninthsOrigin 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
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