What is a "sister" or "nun" in the Roman Catholic faith?

In the context of the Roman Catholic faith, a "sister" or "nun" refers to a member of a religious order who has made vows to live according to the teachings and rules of that order. These individuals dedicate their lives to serving God and their community through various forms of ministry, education, healthcare, and other charitable activities. Sisters and nuns engage in a life of prayer and communal living, often following a Rule of life that emphasizes the values of their specific order.

The term "sister" typically includes those who may not have taken solemn vows but are still recognized as part of the religious community and embody its mission. By making vows such as poverty, chastity, and obedience, they commit themselves to a path of spiritual and communal living.

Options describing a clergy member who performs weddings, a layperson assisting in services, or an honorary title for female leaders do not accurately capture the specific role and commitments of sisters and nuns within the Catholic hierarchy and structure. While these positions may align with aspects of church roles, they do not represent the distinct religious life and vocation of sisters and nuns.