To be fair, I only speak one language unless you count programming languages.
Skype can do real time translation of 4 spoken languages including English, Spanish, Italian and Mandarin. It can translate typed content in real time from a total of 50 languages. Including Klingon. No word on whether Dothraki or high Valyrian are in development.
I’m pretty amazed by the implications this could have for opening up communication on a more global basis. Of course speech translation is also only as good as speech transcription.
For now, this is also limited to Windows 8.1 and Windows 10. No word on availability for other platforms like iOS or OS X.