Kreis has multiple meanings. Primarily it means "sphere"
Other meanings include: circle, circuit, cycle, district, ward, constituency, and round
But you see, with how translating works you look at the original text(or in this case copies of original text), where we see the Hebrew word "Khug" and we compare it's meaning to words in the language in which we are translating that most closely equates the same abstract meaning.
"Khug" literally meaning "sphere", therefore the meaning of the German word "Kreis" contextually, logically, and genuinely must also mean "sphere". This is not complicated. The original word means "sphere" translating into different languages the words mean "sphere", yet you still argue for a flat Earth model, that not only contradicts all known scientific data, but primarily contradicts the very words of the Bible, which testifies to us as being "G-D breathed".
In conclusion: your scholarship is poor, your level of theological study is called into question, and your standing in direct-blatant-willful contradiction of irrefutable scientific and biblical facts leaves you with no credibility to your claims.