This is the 1970th most frequent German word.
fließen
"Fließen" means "to flow."
Here, 'fließt' is used to describe the natural movement of water in a river.
Der Fluss fließt langsam durch die Stadt.
The river flows slowly through the city.
In this sentence, 'fließt' metaphorically describes the transfer of energy through a cable, using the idea of flow.
Die Energie fließt durch das Stromkabel.
The energy flows through the power cable.
'Fließt' in this example is employed metaphorically to depict the passage of time, likened to the flow of a stream.