Can I learn the definition of words from english to aramaic in the bathroom? Nothing religious in nature, just new words I find in the Gemara- like learning a language. All I’d bring in is the word in english and it’s translation and I would learn them by heart while there. I don’t think its Limmud Torah since it is simply a language. What is the Halacha?

One may, if you make no learning associations with it.