A Nun's a woman who's taken special vows committing her to a religious life. She may be an ascetic who voluntarily chooses to leave mainstream society and live her life in prayer and contemplation in a monastery or convent. The term "nun"'s applicable to the Roman Catholics, Eastern Christians, Anglicans, Lutherans, Jains, Buddhists, and Taoists, for example. While in common usage the terms nun and sister are often used interchangeably, properly speaking a nun's a female religious who lives a… (More on Nun)