불법적이거나 좋지 못한 행동을 하는 집단의 주동자 또는 우두머리.
A person who initiates or leads a group in an illicit, illegal, or mischievous activity.
예문:
"The police are still searching for the ringleader of the smuggling operation."
"He was identified as the ringleader of the school bullying incident."
"Several ringleaders of the riot were arrested shortly after the protest."