Definition of "vertical"

Standing, pointing, or moving straight up or down; parallel to the local direction of gravity; along the direction of a plumb line; perpendicular to something horizontal.  examples

In a two-dimensional Cartesian co-ordinate system, describing the axis y oriented normal (perpendicular, at right angles) to the horizontal axis x.  examples

In a three-dimensional co-ordinate system, describing the axis z oriented normal (perpendicular, orthogonal) to the basic plane xy.  examples

(marketing) Of or pertaining to vertical markets.  examples

(wine tasting) Involving different vintages of the same wine type from the same winery.  examples

(music) Of an interval: having the two notes sound simultaneously.  examples

A vertex or zenith.  examples

A vertical geometrical figure; a perpendicular.  examples

An individual slat in a set of vertical blinds.  examples

A vertical component of a structure.  examples

(marketing) A vertical market.  examples