In laff wa-nashr, several items are first gathered in an expression, then their attributes, actions, or judgments are supplied without repeatedly identifying each item’s corresponding element.
The initial enumeration is the laff (“gathering”); the later distribution of associated elements is the nashr (“spreading”). The listener reconstructs the pairings from their natural relationships.
The later correspondences may be in the original order or a different order. Proper analysis requires mapping each later element to its referent.