I recognise that this questions makes me out to be a newbee in some areas, but could anyone explain what the terms: BBBJTC   DATY   FS   Russian   BBBJ  and any others I might have missed (I know what greek is) refer too?  I have the basic gist of a few of them, but I don't know exactly what they refer to...  I have tried looking up a few of these, but with little success...  I have also seen them used on many other websites, but never explained...