The opposite of vertical. A vertical line goes up and down, a horizontal line goes across.

A type of full length matchcovers in which the matchcover is held sideways in order to view the design or read the advertisement or message. (See Vertical, Full Length).

Astrological house system based on division of the horizon from the east point by vertical circles.

Multi-industry. Some marketplaces and ASPs operate in only one industry segment (vertically), while others serve companies across numerous industries (horizontally).

A frame oriented with the long side on the horizontal, usually when the camera is kept level with the horizon for a natural-looking shot. While most photos are horizontal, more advanced photographers tend seek out variety by increasingly shooting vertical as well. Top of this page

Side-to-side, or stretched out flat like the horizon (opposite of vertical).