The following list consists of notable concepts that are derived from both Islamic and Arab tradition, which are expressed as words in the Arabic language. The main purpose of this list is to disambiguate multiple spellings, to make note of spellings no longer in use for these concepts, to define the concept in one or two lines, to make it easy for one to find and pin down specific concepts, and to provide a guide to unique concepts of Islam all in one place.

Separating concepts in Islam from concepts specific to Arab culture, or from the language itself, can be difficult. Many Arabic concepts have an Arabic secular meaning as well as an Islamic meaning.