1) Along with the courts, the main governing body of the Galactic Republic that Supreme Chancellor Sheev Palpatine of Naboo embodies.
2) An
government entity possessing the unlimited
power.
3) A man too dangerous to be left
alive.
"I am the Senate." - Palpatine, the Senate
"Not yet." -
Mace Windu, blinded by arrogance
"It's treason, then." - Palpatine, readying himself to do a 920 degree backflip
spin from the prone position to stab three
worthless Jedi masters while screeching