Perpendicular Bisector, Perpendicular, Parallel Lines, Intersecting:
Perpendicular Bisector- a line that bisects a different line segment into 2 equal parts.
Perpendicular- 2 lines that meet at a 90 degree angle.
Parallel Lines- 2 lines on the same plane that never meet.
Intersecting- 2 lines that intersect or cross at any point.
Here is a picture to show you what a perpendicular bisector, perpendicular, parallel lines and intersecting is: