The meaning of the letter on the meaning in itself according to Ibn al-Nahas (d.698 AH)

Abstract

The letter in the language : the edge, the margin , the side and the boundary
The letter : is the edge of something
The letter is everything : its side, its verge , and its boundary
In grammar a letter can be defined as : a word that refers to meaning
For example Alhamza for interrogative, ( from An) , ( wish Layta) ,
( May be Lala) and ( but Lakin ) called letters of meaning and grammarians in symbols of letters on the
meaning for Ibn Alnahas, the letter refers to the meaning of itself