vertical vs stile

vertical and stile both are nouns.

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

As nouns, stile is a hyponym of vertical; that is, stile is a word with a more specific, narrower meaning than vertical:

Other hyponyms of vertical include column, pillar, jamb, post, scantling, stud, scape, shaft.

vertical (noun)	stile (noun)
a vertical structural member as a post or stake	an upright that is a member in a door or window frame
something that is oriented vertically

vertical (adjective)	stile (adjective)
at right angles to 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)