Nun is the fourteenth letter of the Semitic abjads, including Phoenician nūn 𐤍, Hebrew nūn נ, Aramaic nūn 𐡍, Syriac nūn ܢ, and Arabic nūn ن (in abjadi order). Its numerical value is 50. It is the third letter in Thaana (ނ), pronounced as "noonu". In all languages, it represents the alveolar nasal /n/. It is related to the Ancient North Arabian 𐪌, South Arabian 𐩬, and Ge'ez ነ.
The Phoenician letter gave rise to the Greek nu (Ν), Etruscan
, Latin N, and Cyrillic Н.