Al-Dīn (Arabic: الدين ad-dīn "the religion"), a component of some Arabic names, meaning "the religion", e.g. Saif al-Din "Sword of the religion".
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:
el Din / eldin / eddin al-Din, ad-Din ud-Din, -uddin (particularly in English-speaking South and East Asia), -uddeen (particularly in English-speaking South and East Asia)Examples of names including this element are:
Use of "Uddin" as surname
In modern times in English-speaking environments the name Uddin has sometimes been used as if it was a separate surname. Some examples are:
References
Ad-Din Wikipedia(Text) CC BY-SA