Definition of 'stand up'

Verb

1. rise to one's feet; "The audience got up and applauded"
      Synonyms: arise rise uprise get up
      Antonyms: sit down sit lie down lie
2. refuse to back down; remain solid under criticism or attack
3. put into an upright position; "Can you stand the bookshelf up?"
      Synonyms: stand place upright
4. be standing; be upright; "We had to stand for the entire performance!"
      Synonyms: stand
      Antonyms: sit sit down lie
5. defend against attack or criticism; "He stood up for his friend"; "She stuck up for the teacher who was accused of harassing the student"
      Synonyms: stick up
6. resist or withstand wear, criticism, etc.; "Her shoes won't hold up"; "This theory won't hold water"
      Synonyms: hold up hold water
7. rise up as in fear; "The dog's fur bristled"; "It was a sight to make one's hair uprise!"
      Synonyms: bristle uprise

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