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

Ball position in which the ball stands vertically on its sharp end.

Pertaining to the winch or windlass. The drive shaft, capstan and gypsy are positioned vertically to the deck.

A pair of angles are said to be vertical (US English) or opposite (British English) if they share the same vertex and are bounded by the same pair of lines but are opposite to each other. Such angles are vertical (congruent). More precisely, if two lines AB and CD intersect at E, and E is between A and B, and E is between C and D, then angle AEC is vertical to angle BED, and angle AED is vertical to angle BEC.