An object is in a vertical position when it is aligned in an "up-down" direction, roughly speaking perpendicular to the horizon.

• In science, a vertical direction is aligned with the direction of the force of gravity, as materialized with a plumb line.
• A pair of angles are said to be vertical if they share the same vertex and are bounded by the same pair of lines but are opposite to each other.
• In music the vertical aspect is simultaneity, either intervals or harmony, as opposed to succession or the linear aspect
• In marketing and business in general, a vertical informally means a vertical market, these subjects also refer to vertical integration and vertical monopolies.
• In networking the vertical is typically the portion of network cabling that runs between floors, and is usually considered the backbone.

Lodret | Vertikale | Vertikalo | Verticale | Verticaal | 上下 | Vertikal