What does "crossing" mean?

Additional senses

1. 2.The act of interbreeding; a mixing of breeds.
2. 3.Intersection, as of two paths or roads.
3. 4.A place where anything (as a stream) is crossed; a paved walk across a street.
4. 5.Contradiction; thwarting; obstruction. I do not bear these crossings. Shak.