stand up

definition: defend against attack or criticism
example:
speech part: verb
synonyms: stick up
definition: refuse to back down
example:
speech part: verb
synonyms:
definition: be standing
example:
speech part: verb
synonyms: stand
definition: put into an upright position
example:
speech part: verb
synonyms: stand
definition: rise to one's feet
example:
speech part: verb
synonyms: rise
definition: rise up as in fear
example:
speech part: verb
synonyms: bristle
definition: resist or withstand wear, criticism, etc.
example:
speech part: verb
synonyms: hold up

How stand up is being used?