maintain vs defend

maintain and defend both are verbs.

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

As verbs, maintain and defend are synonyms defined as:

maintain (verb)	defend (verb)
stick to correctly or closely	argue or speak in defense of
state categorically	state or assert
state or assert	be on the defensive; act against an attack
support against an opponent	protect against a challenge or attack
maintain by writing regular records	protect or fight for as a champion
supply with necessities and support	fight against or resist strongly
keep in safety and protect from harm, decay, loss, or destruction	be the defense counsel for someone in a trial
have and exercise
maintain for use and service
cause to continue in a certain state, position, or activity