maintain vs confirm

maintain and confirm both are verbs.

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

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

Other hypernyms of maintain include reassert.

maintain (verb)	confirm (verb)
stick to correctly or closely	make more firm
state categorically	establish or strengthen as with new evidence or facts
state or assert	strengthen or make more firm
support against an opponent	administer the rite of confirmation to
maintain by writing regular records	support a person for a position
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