rear vs bring up

rear is a noun but bring up is not a noun.

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

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

Other hypernyms of rear include elevate, get up, lift, raise.

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

Other synonyms of rear include nurture, parent, raise.

rear (noun)	bring up (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

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

rear (verb)	bring up (verb)
construct, build, or erect	cause to load (an operating system) and start the initial processes
stand up on the hind legs, of quadrupeds	make reference to
cause to rise up	put forward for consideration or discussion
look after a child until it is an adult	summon into action or bring into existence, often as if by magic
rise up	raise from a lower to a higher position
	cause to come to a sudden stop
	look after a child until it is an adult
	promote from a lower position or rank