What does Poirot mean?

The name Poirot is a French word derived from the Old French word "poirier," which means "pear tree." It is commonly used as a surname, especially in France and Belgium.

In the context of detective fiction, the name "Poirot" is most famously associated with the fictional character Hercule Poirot created by the British author Agatha Christie. Hercule Poirot is a Belgian detective known for his brilliant mind, attention to detail, and egg-shaped head.

So, the name "Poirot" can refer to a person with French or Belgian heritage, or it can specifically refer to the fictional detective created by Agatha Christie.