spear

A spear is a long stick that is sharp at one or both ends and is used as a weapon.

Example: Everyone in the Spartan Army carried a spear into battle

A spear is a piece of asparagus or other vegetables that looks like a spear.

Example: At the fancy restaurant, I had a steak with a side of asparagus spears

To spear is to stab someone or something with a spear.

Example: The Cree used to spear fish.