Definition of "Nun"

Nun¹

proper noun
1. (very rare) A male given name from Hebrew
  Quotations
  And Joshua the son of Nun was full of the spirit of wisdom; for Moses had laid his hands upon him: and the children of Israel hearkened unto him, and did as the LORD commanded Moses.
  1611, The Holy Bible, […] (King James Version), London: […] Robert Barker, […], Deuteronomy 34:9

Nun²

proper noun
1. The languages of the Bamun people of western Cameroon.