Horizontal may refer to: *

Horizontal plane In astronomy, geography, and related sciences and contexts, a '' direction'' or '' plane'' passing by a given point is said to be vertical if it contains the local gravity direction at that point. Conversely, a direction or plane is said to be h ...

, in astronomy, geography, geometry and other sciences and contexts *

Horizontal coordinate system The horizontal coordinate system is a celestial coordinate system that uses the observer's local horizon as the fundamental plane to define two angles: altitude and azimuth. Therefore, the horizontal coordinate system is sometimes called as t ...

, in astronomy * Horizontalism, in monetary circuit theory * Horizontalism, in sociology * Horizontal market, in microeconomics * ''Horizontal'' (album), a 1968 album by the Bee Gees ** "Horizontal" (song)" is a 1968 song by the Bee Gees

See also