a buoy resembling a cone
"The old lighthouse keeper warned us that the red nun marking the channel was beginning to sway dangerously in the storm."
the 14th letter of the Hebrew alphabet
"In the Hebrew text, the word for peace begins with a nun followed by a peh and an ayin."
A member of a Christian religious community of women who live by certain vows and usually wear a habit, (Roman Catholicism, specifically) those living together in a cloister.
"In the study of ancient scripts, scholars noted that the character resembling a cross was originally 'nun' in Phoenician before evolving into different forms across various Semitic languages."
The fourteenth letter of many Semitic alphabets/abjads (Phoenician, Aramaic, Hebrew, Syriac, Arabic and others).
A male given name from Hebrew
"The linguist spent weeks studying the tonal patterns of nun to document the endangered dialects spoken by the Bamun community in western Cameroon."
The languages of the Bamun people of western Cameroon.