Examples of using "заняв" in a sentence and their english translations:
If White has a pawn at e5 and Black plays his pawn from d7 to d6, the white pawn can take the black pawn, removing it from the board and occupying d6.
If White has a pawn on e5 and Black plays his pawn from d7 to d5, the white pawn can take the black pawn, removing it from the board and occupying d6, as if the black pawn were there. This is called taking "en passant".