A prison guard is a person responsible for the supervision, safety, and security of prisoners in a jail or prison. A JAILER is a prison guard who is responsible for the day-to-day operations of the prison, such as admitting new inmates, monitoring the activities of inmates, and maintaining order in the prison. A WARDEN is the highest ranking prison guard and is responsible for the overall management of the prison. A WARDER is a prison guard who is responsible for the security of the prison and the safety of the inmates. A CONTENDER is a person who is competing for a position as a prison guard.