uphold vs maintain

uphold and maintain both are verbs.

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

As verbs, uphold and maintain are synonyms defined as:

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

Other hypernyms of uphold include hold, keep.

uphold (verb)	maintain (verb)
stand up for; stick up for; of causes, principles, or ideals	stick to correctly or closely
support against an opponent	state categorically
keep or maintain in unaltered condition; cause to remain or last	state or assert
	support against an opponent
	maintain by writing regular records
	supply with necessities and support
	keep in safety and protect from harm, decay, loss, or destruction
	have and exercise
	maintain for use and service
	cause to continue in a certain state, position, or activity