An "affaire d'honneur" is a French term that refers to a duel between two individuals to defend their honor, reputation, or dignity. It is a practice that was common in Europe during the 16th to 19th centuries, but is no longer relevant in modern society. Synonyms for this term include "duel," "combat," "clash," "confrontation," "challenge," "contest," or "struggle." These words depict a situation where two individuals confront each other to prove their worth or defend their honor. Though the practice of dueling is obsolete, the use of such synonyms can help better understand and describe the historical context of an "affaire d'honneur".