Vertical meaning : A vertex or zenith. A vertical geometrical figure; a perpendicular. An individual slat in a set of vertical blinds. A vertical component of a structure. A vertical market. Standing, pointing, or moving straight up or down; along the direction of a plumb line; perpendicular to something horizontal. In a two-dimensional Cartesian co-ordinate system, describing the axis y oriented normal (perpendicular, at right angles) to the horizontal axis x. In a three-dimensional co-ordinate system, describing the axis z oriented normal (perpendicular, orthogonal) to the basic plane xy. Of or pertaining to vertical markets. (wine tasting) Involving different vintages of the same wine type from the same winery. Of an interval: having the two notes sound simultaneously.