More than two straight lines which pass through a point in a plane are defined concurrent lines.
Straight lines are often appeared by passing through a point in a plane. Two lines are passed through a point in most of the cases and they are known as intersecting lines but more than two straight lines are also passed through a point in some special cases and they are called concurrent lines.
It seems, straight lines pass through a point but they are intersected each other at that point.
, , and are four straight lines. All are in same plane. Assume, they pass through a point in the plane. Now, the straight lines , , and are called concurrent lines.