اضافه بیانی:
You use this when you want to say the material type of something.
eg. ظرف مسی ، گلدان سفالی
ظرف : dish
مس: copper
گلدان: pot
سفال: clay
اضافه استعاری:
Its a metaphor.
eg.
چنگال مرگ : Claws of death , Death not have claws! but we simile death to a wolf
ستون آسمان: The pillar of sky, sky doesn't have a pillar but we simile sky to a giant structure