Devil's Advocate is a person who advocates an opposing or unpopular cause for the sake of argument or to expose it to a thorough examination.Also called promoter of the faith. Roman Catholic Church . an official appointed to present arguments against a proposed beatification or canonization of a beatus.

A devil's advocate is someone who argues against an idea, position, or cause for the sake of argument, rather than out of actual opposition. While a devil's advocate can simply play a contrary role, someone who argues against an idea can also stimulate discussion which can identify weak points in an argument which need to be addressed. Therefore, one could consider this approach incredibly useful, albeit stressful for someone advocating alone against an accepted idea in a group.

The term is derived from a tradition in the Roman Catholic Church, in which someone would act as an advocate for the devil, arguing against the canonization of someone as a saint. The devil's advocate was an official position in the Church between 1587 CE and 1983 CE, and he was known as advocatus diaboli, which literally means "the devil's advocate." The person in this position was expected to come up with reasons why someone should not be canonized as a saint, to ensure that the canonization was undertaken ...more

Source: wise Geek

In common parlance, a devil's advocate is someone who, given a certain argument, takes a position he or she does not necessarily agree with, for the sake of debate. In taking this position, the individual taking on the devil's advocate role seeks to engage others in an argumentative discussion process. The purpose of such process is typically to test the quality of the original argument and identify weaknesses in its structure, and to use such information to either improve or abandon the original, opposing position. It can also refer to someone who takes a stance that is seen as unpopular or unconventional, but is actually another way of arguing a much more conventional stance.

Devil's Advocate :-

1. One who argues against a cause or position, not as a committed opponent but simply for the sake of argument or to determine the validity of the cause or position.

2. Roman Catholic Church An official appointed to present arguments against a proposed canonization or beatification.

Those who want to justify the evils -considered as evils by divine commands
for example justifying alcoholism , prostitution ,adultery , terrorism , killings etc etc

A person who expresses a contentious opinion in order to provoke debate or test the strength of the opposing arguments.

A devil's advocate is someone who argues against an idea, position, or cause for the sake of argument, rather than out of actual opposition. While a devil's advocate can simply play a contrary role, someone who argues against an idea can also stimulate discussion which can identify weak points in an argument which need to be addressed. Therefore, one could consider this approach incredibly useful, albeit stressful for someone advocating alone against an accepted idea in a group.

The term is derived from a tradition in the Roman Catholic Church, in which someone would act as an advocate for the devil, arguing against the canonization of someone as a saint. The devil's advocate was an official position in the Church between 1587 CE and 1983 CE, and he was known as advocatus diaboli, which literally means "the devil's advocate." The person in this position was expected to come up with reasons why someone should not be canonized as a saint, to ensure that the canonization was undertaken ...more

Promoter Fidei,popularlyy known as the Devils Advocate.

Whoever supports bad people or action.

Who fight for terrorists in court