Pis forPound
The word pound can have several meanings.
It could mean to hit something hard, many times, for example "he pounded the meat to tenderize it".
It could mean a unit of British money, equaling 100 pence.
It might also mean a unit of weight, abbreviated to lb, equalling 0.453kg, or 0.373kg for precious metals. The picture is of a pound of flour.