justify vs uphold

justify and uphold both are verbs.

Word	Noun	Adjective	Verb	Adverb
justify	No	No	Yes	No
uphold	No	No	Yes	No

As verbs, uphold is a hypernym of justify; that is, uphold is a word with a broader meaning than justify:

Other hypernyms of justify include maintain.

justify (verb)	uphold (verb)
adjust the spaces between words	stand up for; stick up for; of causes, principles, or ideals
show to be right by providing justification or proof	support against an opponent
(used of God) declare innocent; absolve from the penalty of sin	keep or maintain in unaltered condition; cause to remain or last