Arabic Letter Dad Isolated Form

It is the isolated shape of Arabic ḍād, kept for compatibility.

This character preserves one positional shape of the Arabic letter ض. Arabic writing developed through Nabataean Aramaic forms. An inscription at En Ovdat, dated to the first or second century CE, contains Arabic poetry, though its linguistic relationship is debated; the Namarah inscription, dated 328 CE, is a later milestone in the development of Arabic script.

The isolated, final, initial, and medial shapes are ways the same letter appears according to its position. This presentation form preserves older text that stored such shapes directly; it does not add a spelling or pronunciation.

Should I type ﺽ or ض in Arabic?

Use ض in ordinary Arabic; reserve ﺽ for compatibility work.

Arabic text normally stores the base letter ض, and the text engine chooses its shape from the surrounding letters. FEBD fixes the isolated shape, so placing it inside a word can interrupt that joining pattern. A font may draw it differently, but the character still represents the isolated form.

The letter's sound has been described differently across time and place. In the eighth century, Sibawayh described ḍād as an emphatic sound made with lateral airflow. Modern dialects vary in how they pronounce it, while the written letter remains the same.