ad-Din
Al-Dīn, (Arabic:الدين ad-dīn "the religion/faith"), a component of some Muslim Arabic names, meaning "of the Faith", e.g. Saif al-Din "Sword of the Faith".
The Arabic spelling closely transliterated is a l d ī n, but its standard transliteration is ad-dīn due to the phonological rules involving "sun letter", but in practice romanizations of Arabic names containing this element may vary greatly, including: