plural ninths ˈnīn(t)s How to pronounce ninth (audio)
ˈnīn(t)ths
1
: one that is number nine in a series
They're leaving on the ninth.
The batter hit a home run in the bottom of the ninth.
see Table of Numbers
2
: one of nine equal parts of something
She owned a ninth of the company.
3
a
: a musical interval embracing an octave and a second
b
: the tone at this interval
c
: a chord containing a ninth
ninth adjective or adverb
the ninth day of the month
the book's ninth edition
He finished ninth in the race.

Examples of ninth in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Justin Wilson recorded two quick outs to finish the seventh, Garrett Whitlock worked around a pair of singles to post a scoreless eighth, and Aroldis Chapman locked down his 17th save of the season with a perfect ninth. Mac Cerullo, Hartford Courant, 13 July 2025 Estrada stranded a man at third base in the eighth, and Suarez worked a 1-2-3 ninth for his major league-leading 27th save. Kevin Acee, San Diego Union-Tribune, 11 July 2025 Suarez singled in a run and another scored on a wild pitch when the D-backs closed to 6-4 in the eighth, but Ronny Henriquez pitched a 1-2-3 ninth for his third save in five chances. Miami Herald, 30 June 2025 Robert Suarez worked a 1-2-3 ninth, moving into a tie for the MLB lead with his 22nd save of the season. Kevin Acee, San Diego Union-Tribune, 24 June 2025 See All Example Sentences for ninth

Word History

First Known Use

13th century, in the meaning defined at sense 2

Time Traveler
The first known use of ninth was in the 13th century

Browse Nearby Words

Cite this Entry

“Ninth.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ninth. Accessed 29 Jul. 2025.

Kids Definition

ninth

noun
plural ninths
: one that is number nine in a series see number
ninth adjective or adverb

More from Merriam-Webster on ninth

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!