Definitions of discharge:

• noun:   the act of discharging a gun
• noun:   the act of venting
• noun:   the sudden giving off of energy
• noun:   the pouring forth of a fluid
• noun:   electrical conduction through a gas in an applied electric field
• noun:   any of several bodily processes by which substances go out of the body

  Example: "The discharge of pus"

• noun:   a substance that is emitted or released
• noun:   a formal written statement of relinquishment
• noun:   the termination of someone's employment (leaving them free to depart)
• verb:   release from military service
• verb:   eliminate (substances) from the body
• verb:   pour forth or release

  Example: "Discharge liquids"

• verb:   remove the charge from
• verb:   free from obligations or duties
• verb:   complete or carry out

  Example: "Discharge one's duties"

• verb:   become empty or void of its content
• verb:   cause to go off
• verb:   go off or discharge
• verb:   pronounce not guilty of criminal charges
• verb:   leave or unload, especially of passengers or cargo;