An option to NOT log words/ multi language support for polyglots

Why, you might ask, would I want to do disable such an amazing feature?
First of all I totally new to this absolutely remarkable tool.

I am an English teacher. I teach students with various first languages. I would like to be able to translate in real time for them occasional words into their native language. I use ReadLang for my own personal use so I don’t want all these random words making their way into my own word list.

After a bit of experimentation I actually now see thats not really possible because you are only able to have one language showing up in your word list.
*interestingly once I get a word in spanish into my list, even if I change to German and have the tool set to german I get a spanish translation.

Multilanguage support would be great but would be super stoked if I just had a way to not log words.

Perhaps this is a feautre in the paid version. I am so close to just signing up and well maybe I will just sign up anyway. This tool is just too cool!