upbringing vs rearing

upbringing and rearing both are nouns.

Word	Noun	Adjective	Verb	Adverb
upbringing	Yes	No	No	No
rearing	Yes	Yes	No	No

As nouns, upbringing and rearing are synonyms defined as:

upbringing and rearing: helping someone grow up to be an accepted member of the community

Other synonyms of upbringing include breeding, bringing up, fosterage, fostering, nurture, raising.

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

upbringing: properties acquired during a person's formative years
rearing: the properties acquired as a consequence of the way you were treated as a child

Other hyponyms of upbringing include breeding, education, training, nurture, raising.

upbringing (noun)	rearing (noun)
helping someone grow up to be an accepted member of the community	helping someone grow up to be an accepted member of the community
properties acquired during a person's formative years	the properties acquired as a consequence of the way you were treated as a child

upbringing (adjective)	rearing (adjective)
	rearing on left hind leg with forelegs elevated and head usually in profile