Definitions

1. noun

a fictional character, a Belgian detective created by Agatha Christie, known for his intellectualism and distinctive habits, such as twirling his mustache

“Hercule Poirot is one of Christie’s most famous detectives and is widely regarded as a cultural icon.”

2. proper noun

the given name of the fictional character, used to refer to him specifically

“The film adaptation of Agatha Christie’s novel ‘Murder on the Orient Express’ features David Suchet as Hercule Poirot.”