set up vs rear

set up is not a noun while rear is a noun.

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

As verbs, rear is a hypernym of set up; that is, rear is a word with a broader meaning than set up:

Other hypernyms of set up include erect.

As verbs, set up and rear are synonyms defined as:

Other synonyms of set up include erect, put up, raise.

set up (noun)	rear (noun)
	the side that goes last or is not normally seen
	the fleshy part of the human body that you sit on
	the back of a military formation or procession
	the side of an object that is opposite its front
	the part of something that is furthest from the normal viewer

set up (adjective)	rear (adjective)
	located in or toward the back or rear

set up (verb)	rear (verb)
get ready for a particular purpose or event	construct, build, or erect
make ready or suitable or equip in advance for a particular purpose or for some use, event, etc	stand up on the hind legs, of quadrupeds
equip with sails or masts	cause to rise up
arrange thoughts, ideas, temporal events	look after a child until it is an adult
put into a proper or systematic order	rise up
erect and fasten
set up for use
place
create by putting components or members together
construct, build, or erect
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