- The definition of nother is an informal way of referencing something different.
An example of nother is telling someone that they misunderstood which person you were referring to, saying "He's a whole nother person."
nother definition by Webster's New World
Webster's New World College Dictionary Copyright © 2010 by Wiley Publishing, Inc., Cleveland, Ohio. Used by arrangement with John Wiley & Sons, Inc.
Slang different; not the same
nother definition by American Heritage Dictionary
Other. Usually used in the phrase a whole nother, as in the sentence That's a whole nother story.
Origin: From alteration of another (interpreted as a nother).