Pila (one pilum, several pila) were spears used by Roman armies
Arrowheads and spearheads as they were common in antiquity
A spear is a weapon used in Antiquity and the Middle Ages. It is meant to primarily stab. But some spears can both stab and slash, although stabbing is still used more often. Some kinds of spears were also meant to be thrown.
A lance is a special spear used from horseback during medieval times.