In popular usage (Nun) is believed to be a contraction, like Tractor is from the older Traction engine, of (renunciant) as they have renonced the secular world, reside in cloisters and convents, etc....
a nun (include sister/brother) is a layperson... who has professed his or her dedication to a life of service to Christ.
They have taken vows of obedience and chastity (celebacy) and poverty
At the...
Nuns.
Origin and history.
The institution of nuns and sisters, who devote themselves in various religious orders to the practice of a life of perfection, dates from the first ages of the Church, and...
A woman who has dedicated her life in service to Christ by serving Him in service to the people of God. Who nurses the ill and educates the poor. Nuns also give up houses in their convent to nurse...