stand up

verb

• To rise from a lying or sitting position.

  "Stand up, then sit down again."

• To bring something up and set it into a standing position.

  "Laura stood the sofa up on end."

• (stand someone up) To avoid a prearranged meeting, especially a date, with (a person) without prior notification; to jilt or shirk.

  "John stood Laura up at the movie theater."

• (of a thing) To last or endure over a period of time.
• (of a person or narrative) To continue to be believable, consistent, or plausible.
• (of a wicket-keeper) To stand immediately behind the wicket so as to catch balls from a slow or spin bowler, and to attempt to stump the batsman.
• To launch, propel upwards
• To formally activate and commission (a unit, formation, etc.).
• To make one's voice heard, to speak up