Translation of Liquidation

I want to work on the country specific terms first, then do a revision of the words that we have entered so far... please give me a few days to finish it. However, I may need to contact you over the weekend, depending on my progress.
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?
I now live in Spain. I have moved too 2 years ago. I have finished my studies and in February I'm going to high school. I have not spoken German for a long time, actually since I was a kid.