I. ˈnən noun
Etymology: Middle English, from Old English nunne, from Late Latin nonna
Date: before 12th century
: a woman belonging to a religious order ; especially : one under solemn vows of poverty, chastity, and obedience
• nun·like -ˌlīk adjective
II. ˈnu̇n noun
Etymology: Hebrew nūn
Date: circa 1567
: the 14th letter of the Hebrew alphabet — see alphabet table