If the question means, "What do you call the point where two lines cross?" The answer would be "intersection". Otherwise, I would call them 2 intersecting lines.
The point of intersection.
The Hammersmith and City lines did not call at Kings Cross St. Pancras.
The Circle Line is the Tube Line that did not call at the Kings Cross.
Cross hairs ( if you are reffering to a gun)
point of intersection
the point of concurrency
When two lines cross each other they form vertical equal opposite angles
The intercept
Vertex
If they measure 90 degrees then they are perpendicular. Other than that they are just intersecting lines
They would be intersecting.