You also have the furbish to english dictionary. If you want to write something down in secret furbish code, you'll have to do some research. There is a whole alphabet list and you can select a letter, and it shows you a word. You can toggle through the words for that letter. To hear what the word sounds like, tap the green button. Your phone will pronounce the word in a robotic female voice. You can find the furbish dictionary Here.
Here is the song Furby 2.0 sings in Furbish.
[Twinkle twinkle little star]
tee-wee-lah dee dah-ay-loh
doo kah way-nah oo-n