Definitions of purge:

• noun:   an act of removing by cleansing; ridding of sediment or other undesired elements
• noun:   the act of clearing yourself (or another) from some stigma or charge
• verb:   oust politically

  Example: "Deng Xiao Ping was purged several times throughout his lifetime"

• verb:   rid of impurities

  Example: "Purge the water"

• verb:   excrete or evacuate (someone's bowels or body)

  Example: "The doctor decided that the patient must be purged"

• verb:   clear of a charge
• verb:   make pure or free from sin or guilt
• verb:   rinse, clean, or empty with a liquid

  Example: "Purge the old gas tank"

• verb:   eject the contents of the stomach through the mouth

  Example: "He purged continuously"