Traditionally, a chaplain is a minister, such as a priest, pastor, rabbi, imam or  lay representative of a religious tradition, attached to a secular institution such as a hospital, prison, military unit, school, police department, fire department, university, or private chapel. Though originally the word "chaplain" referred to representatives of the Christian faith, it is now also applied to people of other religions or philosophical traditions–such as the case of chaplains serving with military forces and an increasing number of chaplaincies at American universities. In recent times, many lay people have received professional training in chaplaincy and are now appointed as chaplains in schools, hospitals, universities, prisons and elsewhere to work alongside, or instead of, official members of the clergy. The concept of "generic", "multifaith", "secular" and/or "humanist" chaplaincy is also gaining increasing support, particularly within healthcare and educational settings.