DuckCorp Dico

Found one definition

1.                 From The Collaborative International Dictionary of English v.0.48:
                   
   
   
                   
                     
   9 \9\ adj.
      1. one more than eight and one less than ten; denoting a
         quantity consisting of nine items or units; --
         representing the number nine as an Arabic numeral.
      Syn: nine, ix
           [WordNet 1.5 +PJC]