foot
The Italian word 'piede' is used to refer to the lower extremity of the leg below the ankle, on which a person stands or walks, which is the same use as the English word 'foot'. It's also used in the context of measurements, like in English.
I have a footache.
This sentence is used when somebody is feeling discomfort or pain in their foot.
The foot of the mountain.
In Italian, 'foot' can metaphorically denote the bottom part of something, similar to English.
This is a crowbar.
'Piede di porco' is an idiomatic expression which literally translates to 'pig's foot' but commonly understood as 'crowbar' in English.