Alef is one of the non-connecting letters in Perso-Arabic script and therefore does not join to the following letter.

Many classical Pashto poets adopted the arūz system of quantitative meter from Arabic and Persian poetic tradition for formal compositions.

Pashto is written in an extended Perso-Arabic script that includes additional letters to represent Pashto phonemes.

The Umayyad administration standardized Arabic as the official language for governance and administration, which had long-term institutional effects across their domains.

The House of Wisdom spearheaded a large-scale translation movement that rendered Greek, Syriac and other texts into Arabic and fostered intellectual synthesis.

Abd al-Malik (r. 685–705) introduced Arabic in administration and replaced Byzantine-Sassanian coinage with Islamic coinage as part of state centralization.

The hamza is the conventional Perso-Arabic character used to denote a glottal stop or related orthographic functions in adapted Balochi script.

Balochi literary texts are most commonly written in a modified Perso-Arabic script adapted from Persian/Urdu orthography.

لم is a negative particle that makes the following present-tense verb jussive, as in 'لم يذهبْ'.

قَلِق means 'worried' or 'anxious', so the synonym 'worried' (قلق) is correct.