A chapeau is a flat-topped

hat A hat is a Headgear, head covering which is worn for various reasons, including protection against weather conditions, ceremonial reasons such as university graduation, religious reasons, safety, or as a fashion accessory. Hats which incorpor ...

that is traditionally worn by senior

cleric Clergy are formal leaders within established religions. Their roles and functions vary in different religious traditions, but usually involve presiding over specific rituals and teaching their religion's doctrines and practices. Some of the ter ...

s and certain nobles. Such hats are worn as part of an official

costume Costume is the distinctive style of dress and/or makeup of an individual or group that reflects class, gender, occupation, ethnicity, nationality, activity or epoch—in short, culture. The term also was traditionally used to describe typica ...

uniform A uniform is a variety of costume worn by members of an organization while usually participating in that organization's activity. Modern uniforms are most often worn by armed forces and paramilitary organizations such as police, emergency serv ...

In heraldry

In European

ecclesiastical heraldry Ecclesiastical heraldry refers to the use of heraldry within Christianity for dioceses, organisations and Christian clergy. Initially used to mark documents, ecclesiastical heraldry evolved as a system for identifying people and dioceses. It i ...

, it is used as a mark of

ecclesiastical {{Short pages monitor