Fuel starvation and fuel exhaustion

In an internal combustion engine, fuel starvation is the failure of the fuel system to supply sufficient fuel to allow the engine to run properly, for example due to blockage, vapor lock, contamination by water, malfunction of the fuel pump or incorrect operation, leading to loss of power or engine stoppage. There is still fuel in the tank(s), but it is not delivered to the engine(s) in sufficient quantity.

Source: Wikipedia — Fuel starvation and fuel exhaustion (CC BY-SA 4.0)