Translation of Kaffeetasse

I'm Ricky. I am learning English at school here in Switzerland and at the same time I am learning Italian. You writing skills are very good. Where did you go on your last vacation? See you next week.
Maybe we would need to say install our dictionary as a software? But I would say instead of install, use our dictionary as a software. So bottom line. If I use the singular form for newsletters and websites, I am on the safe side for both?
How are you? I want to meet you when you are in Austria? At the weekend I took the train home, and tomorrow I'm going back again to Karlsruhe in the south of our country. It is near Freiburg.