vertical vs erectile

vertical is a noun but erectile is not a noun.

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

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

vertical (adjective)	erectile (adjective)
at right angles to the plane of the horizon or a base line	capable of being raised to an upright position
upright in position or posture	filled with vascular sinuses and capable of becoming distended and rigid as the result of being filled with blood
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)