1.Definition: at right angles to the plane of the horizon or a base line
"A vertical camera angle", "The monument consists of two vertical pillars supporting a horizontal slab"
2.Definition: of or relating to different levels in a hierarchy (as levels of social class or income group)
"Vertical social mobility"
3.Definition: relating to or involving all stages of a business from production to distribution
4.Definition: upright in position or posture
"A column still vertical amid the ruins"