position or alignment relative to points of the compass or other specific directions
is a type of (narrower)
the spatial relation between something and the course along which it points or moves
"he checked the direction and velocity of the wind"
is an attribute of
parallel to or in the plane of the horizon or a base line
"a horizontal surface"
is an attribute of
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"; "measure the perpendicular height"
is an attribute of
at an angle to the horizontal or vertical position
"an inclined plane"