I can't believe I actually need to make this post, but.

[bestpartnerever]

After it being mentioned in several threads, and it's... implied canon that Hisoka knows quite a few languages (or at least Kira and I read it that way, since he's always reading weird foreign things--) this is the list we compiled of the languages Hisoka probably knows (black text are ones implied in canon, grey are the ones we were tards about):

• Japanese
• English
• German (+Austrian German)
  
• Icelandic
• Latin
• French
• Italian
• Russian
• Dutch (read only)

...Er. Edit: Black/grey text references can only be seen by clicking the "link" button and seeing the post by itself with default LJ settings, since on Hisoka's main journal page EVERYTHING is grey text whoops.