ninth

noun

ˈnīn(t)th 

plural ninths ˈnīn(t)s 

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

It is ranked third-highest for its number of paranormal investigators and ninth for the number of cemeteries per capita in the state. —Sydney Borchers, Fox News, 31 Oct. 2024

Ryan Helsley pitched a perfect ninth for his 20th save. —Kristie Rieken, San Diego Union-Tribune, 5 June 2024

With Freeman resembling his usual self in the World Series, the Dodgers have been retired in order in just eight of their 27 innings — including four times in Game 1, when Yankees ace Gerrit Cole did it three times before closer Luke Weaver tossed a perfect ninth. —Jerry Beach, Forbes, 29 Oct. 2024

The Mets clung on in the bottom of ninth to clinch an 8-7 victory and their spot in the postseason. —David Close, CNN, 1 Oct. 2024

Word History

First Known Use

13th century, in the meaning defined at sense 2

Phrases Containing ninth

• ninth cranial nerve

Kids Definition

ninth

noun

ˈnīn(t)th 

plural ninths

: one that is number nine in a series see number

ninth adjective or adverb