• be in an upright position; get up from a seated position; fail to arrive for an appointment (figurative)
• stand-up comedy is comedy in which a comedian stands up alone in front of an audience and tells jokes.
• a stand-up fight or argument is one in which people stand up and hit or shout at each other in an unrestrained way.
stand up comedy
• performance where a comedian tells jokes on stage
stand up for
• defend the interests of; support; serve as best man to a bridegroom, serve as maid of honor to a bride