Learn how to say Nuns correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word nun:
1a member of a religious community of women, typically one living under vows of poverty, chastity, and obedience.
2any of a number of birds whose plumage resembles a nun’s habit, especially an Asian mannikin.
a pigeon of a breed with a crest on its neck.
Old English nonne, from ecclesiastical Latin nonna, feminine of nonnus ‘monk’, reinforced by Old French nonne