A principle governing the structure of morphemes in relation to their written form.

रूपसूचक नियम

English Usage: The morphographemic rule explains how certain letters change in different word forms.

Hindi Usage: रूपसूचक नियम बताता है कि विभिन्न शब्द रूपों में कुछ अक्षर कैसे बदलते हैं।