DuckCorp Dico

Found one definition

1.                 From en.wiktionary.org:
                   
   
   
                   
                     
   [Appendix:Variations of "io"]
   
   ** English
   
   *** Adjective
   [-]
   
    1. [en]  in / out , input / output  [descriptive of data flow]
   **** Alternative forms
   
    - [en]
   **** Further reading
   
    - [pedia]
   *** Preposition
   [en]
   
    1. [en] .
   *** Anagrams
   
    - [en]