A nun is a woman who has dedicated her life to religious service, often within a Christian context. Nuns typically live in a convent and follow a specific set of rules, which may include vows of poverty, chastity, and obedience. They engage in various activities such as prayer, community service, and education, depending on their religious order. Nuns can be found in many different Christian denominations, including Catholicism, Orthodoxy, and Anglicanism. Each order has its own unique traditions and missions, such as the Benedictines, who focus on monastic life, or the Sisters of Charity, who emphasize helping the poor and marginalized.