Olympic sport of fencing, one of the weapons is the foil.

There are three types of fencing swords each with different rules : Foil, Eppe and Sabre. The blade of a foil is called a "Foil blade"
The blade of an eppe is called an "Eppe Blade"
Etc

Fencing uses a foil (sword).

Foil.

If one wishes to learn fencing, a foil would be a good choice to begin. One could read more by using the link to the Wikipedia article on the foil. The foil is a preliminary weapon in fencing. Fencing is a right-of-way sport and can be very complicated. The foil has a French grip and a circular pommel, and the blade is a lot like a thin metal rod. A [[fencers]] sword is called a foil.