Perpendicular to the plane of the horizon; upright; plumb; as, a vertical line.

A vertical line, plane, or circle.

Something that is upright like a vertical line.

(1) an imaginary line perpendicular (at an angle of 90°) to the plane of the horizon. (2) Said of a borehole which is straight. Not deviated.

Of or pertaining to the vertex; situated at the vertex, or highest point; directly overhead, or in the zenith; perpendicularly above one.

Vertical position; zenith.

At right angle to the normal water level.

an option position composed of either all calls or all puts with long options and short options at two different strikes

A high obstacle.

A fence consisting of a single vertical element with no spread.

A fence with no spread element. It requires the horse to make a steep arc in its effort to clear the obstacle.

An obstacle which is difficult to jump because of its height.