ninety plural
nine·ty
The plural form of ninety is nineties
N nDefinitions
- noun plural ninety a cardinal number, ten times nine. 1
- noun plural ninety a symbol for this number, as 90 or XC. 1
- noun plural ninety a set of this many persons or things. 1
- noun plural ninety nineties, the numbers, years, degrees, or the like, from 90 through 99, as in referring to numbered streets, indicating the years of a lifetime or of a century, or degrees of temperature: His grandmother is in her nineties. 1
- noun plural ninety When you talk about the nineties, you are referring to numbers between 90 and 99. For example, if you are in your nineties, you are aged between 90 and 99. If the temperature is in the nineties, the temperature is between 90 and 99 degrees. 0
- noun plural ninety The nineties is the decade between 1990 and 1999. 0