stand up vs defend

stand up and defend both are verbs.

Word	Noun	Adjective	Verb	Adverb
stand up	No	No	Yes	No
defend	No	No	Yes	No

As verbs, defend is a hypernym of stand up; that is, defend is a word with a broader meaning than stand up:

Other hypernyms of stand up include fend for, support.

stand up (verb)	defend (verb)
defend against attack or criticism	argue or speak in defense of
refuse to back down; remain solid under criticism or attack	state or assert
be standing; be upright	be on the defensive; act against an attack
put into an upright position	protect against a challenge or attack
rise to one's feet	protect or fight for as a champion
rise up as in fear	fight against or resist strongly
resist or withstand wear, criticism, etc.	be the defense counsel for someone in a trial