Tooth

A tooth (سن) is a small pointed peak in an Arabic stroke that rises and drops back to the baseline. It's one of the building blocks that creates Arabic "rhythm" across a word, because repeating teeth form a visible beat the eye can follow.

Visual Impact

Teeth show up as repeated peaks (like a wave of small spikes), and also as tooth-like stroke units that structure many connected letters in text styles. Their height, sharpness, and spacing strongly affect clarity, especially at small sizes, because crowded or blunt teeth can make letters merge and reduce legibility.

Letters with Teeth