definition of
stand up

[1] #1 stand up v. rise to one's feet; "The audience got up and applauded". wn

[2] #2 stand up v. refuse to back down; remain solid under criticism or attack. wn

[3] #3 stand up v. put into an upright position; "Can you stand the bookshelf up?". wn

[4] #4 stand up v. be standing; be upright; "We had to stand for the entire performance!". wn

[5] #5 stand up v. defend against attack or criticism; "He stood up for his friend"; "She stuck up for the teacher who was accused of harassing the student". wn