Read the dictionary definition of crossing. All definitions for this word.
1. traveling across
2. a voyage across a body of water (usually across the Atlantic Ocean)
3. (genetics) the act of mixing different species or varieties of animals or plants and thus to produce hybrids
4. a path (often marked) where something (as a street or railroad) can be crossed to get from one side to the other
5. a junction where one street or road crosses another
6. a point where two lines (paths or arcs etc.) intersect
7. a shallow area in a stream that can be forded