vertical vs horizontal

vertical and horizontal both are nouns.

Word	Noun	Adjective	Verb	Adverb
vertical	Yes	Yes	No	No
horizontal	Yes	Yes	No	No

vertical (noun)	horizontal (noun)
a vertical structural member as a post or stake	something that is oriented horizontally
something that is oriented vertically

vertical (adjective)	horizontal (adjective)
at right angles to the plane of the horizon or a base line	parallel to or in the plane of the horizon or a base line
upright in position or posture
relating to or involving all stages of a business from production to distribution
of or relating to different levels in a hierarchy (as levels of social class or income group)