i'jaz is a big word that means something is really special and amazing. It is like when you draw a picture and it is so good that everyone else can't believe you did it! i'jaz is different because it is when someone writes something so amazing and special, that it is impossible for anyone to copy or make something similar. It is like when your teacher gives you a test and you do so well that nobody else in the class gets the same answers as you - that is i'jaz! Some people believe that the Quran (which is a holy book that Muslims read) has so much i'jaz in it because it is impossible for anyone to write something like it, even if they tried really hard.