1 line i guess
2 Lines in the same plane that do not meet are parallel. If 2 lines are in different planes and do not meet, then they are called skew lines.
When 2 or more straight lines meet...the point where they meet is called the point of intersection
Fault lines
parallel lines
Perpendicular lines
Two lines that meet at a right angle are called perpendicular.Two lines that meet at a right angle are also called normal.Two lines that meet at a right angle are also called orthogonal.
Intersection point in lines & in figures' sides it's called vertex.
There is no specific name for lines that meet at one point, but lines that meet at a point, the point is called the intersection point.
nonparallel lines
Two lines that never meet are called parallel lines. They remain equidistant from each other at all points and do not intersect, regardless of how far they are extended. An example of parallel lines can be seen in the rails of a train track.
perpendicular lines
Convergent