open vs set up

open is a noun but set up is not a noun.

Word	Noun	Adjective	Verb	Adverb
open	Yes	Yes	Yes	No
set up	No	No	Yes	No

As verbs, set up is a hyponym of open; that is, set up is a word with a more specific, narrower meaning than open:

open: start to operate or function or cause to start operating or functioning
set up: set up or found

Other hyponyms of open include establish, found, launch.

open (noun)	set up (noun)
information that has become public
a tournament in which both professionals and amateurs may play
a clear or unobstructed space or expanse of land or water
where the air is unconfined

open (adjective)	set up (adjective)
ready or willing to receive favorably
affording unobstructed entrance and exit; not shut or closed
affording free passage or access
(set theory) of an interval that contains neither of its endpoints
open and observable; not secret or hidden
used of mouth or eyes
ready for business
not having been filled
(of textures) full of small openings or gaps
openly straightforward and direct without reserve or secretiveness
not requiring union membership
open to or in view of all
possibly accepting or permitting
without undue constriction as from e.g. tenseness or inhibition
having no protecting cover or enclosure
affording free passage or view
with no protection or shield
accessible to all
not sealed or having been unsealed
not brought to a conclusion; subject to further thought
not defended or capable of being defended

open (verb)	set up (verb)
make available	get ready for a particular purpose or event
become available	make ready or suitable or equip in advance for a particular purpose or for some use, event, etc
make the opening move	equip with sails or masts
cause to open or to become open	arrange thoughts, ideas, temporal events
become open	put into a proper or systematic order
spread out or open from a closed or folded state	erect and fasten
display the contents of a file or start an application as on a computer	set up for use
afford access to	place
start to operate or function or cause to start operating or functioning	create by putting components or members together
begin or set in action, of meetings, speeches, recitals, etc.	construct, build, or erect
have an opening or passage or outlet	begin, or enable someone else to begin, a venture by providing the means, logistics, etc.
	produce
	take or catch as if in a snare or trap
	arrange the outcome of by means of deceit
	set up or found