1. Coming next after the eighth and just before the tenth in position
   - 9th

1. Position nine in a countable series of things
   "going into the ninth they were a run ahead" 
2. One part in nine equal parts
   - one-ninth

Derived forms: ninths

See also: ordinal

Type of: common fraction, rank, simple fraction, vulgar fraction [Brit]

Encyclopedia: Ninth

• Nation of Islam
• nation state
• national
• National Academy of Sciences
• National Aeronautics and Space Administration
• national anthem
• National Archives and Records Administration
• national assistance
• National Association of Realtors
• National Association of Securities Dealers Automated Quotations
• national bank
• National Baseball Hall of Fame
• national capital
• national censorship
• National Climatic Data Center
• national debt
• national debt ceiling
• national flag
• National Geospatial-Intelligence Agency
• National Guard
• National Guard Bureau
• national holiday
• national income
• National Institute of Justice
• National Institute of Standards and Technology