Can you think of a word or a thing that you know the name of in a second language, but don't know in your native language? And I don't mean grammatical constructs, past tenses and stuff like that. I mean nouns, names of objects, verbs, etc.
My examples (Czech native, English is my second language):
- Some tools, since I watch a lot of makers: auger, router, mill (as in a milling machine)
- A lot of math/physics/programming terms: algebraic constructs (groups and the whole hierarchy), sub-atomic particles and terms from quantum theory... So many original english terms in IT are generally used "as-is" that I don't even know if some of them have a czech equivalent. I know some do, but I'd never use them in a conversation.
- Some exotic animals, but I can't think of any right now...
I know I could easily find the translations. However, I don't usually get into a context where such words would appear in other language than English. And it feels like I've mastered the language when there's a thing I fully understand the meaning of, while only learning abou it in English without the need to translate.