From Longman Dictionary of Contemporary Englishnunnun /nʌn/ noun [countable] RRsomeone who is a member of a group of religious women that live together in a convent → monk
Examples from the Corpus
nun• Georgiana later marries, and Eliza becomes a nun.• These monks and nuns do not do this for their own good.• The sun was beating down on our backs and our throats were becoming as dry as a proverbial nuns.• A single nun, working in an unorthodox manner in the slums, made some of the local clergy distinctly uncomfortable.• On the day of the crowning, the nuns gave all of us girls crowns of flowers to wear in our hair.• According to more than one witness, one of the nuns had her shoulder broken.Origin nun (900-1000) Late Latin nonna 