If the first letter, ב, is the well known preposition meaning with, in, what will שני be?
This is a very common word in Hebrew: it means two (males or masculine gender things) or, to be more accurate, two of.
So the entire word means in (the) two of.
We have it in this exact form a few times in the Bible pages: Deu 9:17.
Pronunciation: bish(e)ney