What is the meaning of Unload?

To remove the load or cargo from (a vehicle, etc.).

To remove (the load or cargo) from a vehicle, etc.

To deposit one's load or cargo.

To give vent to or express; to unburden oneself of.

To remove (something previously loaded) from memory.

To discharge, pour, or expel.

To get rid of or dispose of.

To sell or dispose of (something) with the intent to deceive; to attempt to pass off a counterfeit or inferior product as genuine.

To reduce the vertical load factor on (an airplane's wing or other lifting surface), typically by pitching downwards toward the ground to decrease angle of attack and reduce the amount of lift generated.

To deliver forcefully.

To ejaculate, particularly within an orifice.

To remove the charge from; to discharge.

Source: wiktionary.org