Contextual Letterforms

Arabic letters change shape depending on where they appear in a word. A single letter can have different forms when it is isolated, at the beginning, in the middle, or at the end of a word. These are called contextual letterforms, and they are a core reason Arabic typography behaves differently than Latin.

Joining and Flow

This system is tied to joining. Because many Arabic letters connect, the script is built around continuity and flow, with letterforms designed to adapt to their neighbors. For designers, contextual forms affect everything from readability and spacing to how a typeface handles rhythm across a line, especially when combined with diacritics, punctuation, or bilingual layouts.

Letter Forms Reference