Dīn (Arabic: دين, romanized: Dīn, also anglicized as Deen) is an Arabic word with three general senses: judgment, custom, and religion.[1] It is used by both Muslims and Arab Christians.

In Islamic terminology, the word refers to the way of life Muslims must adopt to comply with divine law, encompassing beliefs, character and deeds.[2] The term appears in the Quran 98 times with different connotations, including in the phrase yawm al-din (Arabic: يوم الدين), generally translated to "Day of Judgment" or the famous verse "La ikraha fid din" which translates to "Let there be no compulsion in religion.