In kinayah of an attribute, the referent is understood while a quality is expressed indirectly through its familiar sign or consequence. «طويل النجاد» points to tallness and «كثير الرماد» to generosity.
This is distinct from straightforward predication. «رَجُلٌ طَوِيلٌ» directly calls a man tall; «طويل النجاد» employs the length of another object as the indicator.