What is the meaning of crossing?

noun

• Traveling across.
• A shallow area in a stream that can be forded.
  • synonyms: ford
• A point where two lines (paths or arcs etc.) intersect.
• A junction where one street or road crosses another.
  • synonyms: intersection, crossroad, crossway, carrefour
• A path (often marked) where something (as a street or railroad. can be crossed to get from one side to the other)
  • synonyms: crosswalk, crossover
• Genetics) the act of mixing different species or varieties of animals or plants and thus to produce hybrids.
  • synonyms: hybridization, hybridisation, crossbreeding, cross, interbreeding, hybridizing
• A voyage across a body of water (usually across the Atlantic Ocean. )

verb

• Travel across or pass over.
  • usage: "The caravan covered almost 100 miles each day"
  • synonyms: traverse, track, cover, cross, pass over, get over, get across, cut through, cut across
• Meet at a point.
  • synonyms: intersect, cross
• Hinder or prevent (the efforts, plans, or desires) of.
  • usage: "What ultimately frustrated every challenger was Ruth's amazing September surge"; "foil your opponent"
  • synonyms: thwart, queer, spoil, scotch, foil, cross, frustrate, baffle, bilk
• Fold so as to resemble a cross.
  • usage: "she crossed her legs"
  • synonyms: cross
• To cover or extend over an area or time period.
  • usage: "Rivers traverse the valley floor, "The parking lot spans 3 acres"; "The novel spans three centuries"
  • synonyms: cross, traverse, span, sweep
• Meet and pass.
  • usage: "the trains crossed"
  • synonyms: cross
• Trace a line through or across.
  • usage: "cross your `t'"
  • synonyms: cross
• Breed animals or plants using parents of different races and varieties.
  • usage: "cross a horse and a donkey"; "Mendel tried crossbreeding"; "these species do not interbreed"
  • synonyms: crossbreed, cross, hybridize, hybridise, interbreed