The following list consists of 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. One example is the concept of dawah. One of the complexities of the Arabic language is that a single word can have multiple meanings. The word Islam is itself a good example.
Readers should also note that Arabic is written in its own alphabet, with letters, symbols, and orthographic conventions that do not have exact equivalents in the Latin alphabet (see Arabic alphabet). The following list is a transliteration of Arabic terms and phrases. Consequently, Muslims may transliterate certain Arabic words differently, such as din as opposed to deen, and aqidah as opposed to aqeedah. Most items in the list also contain their actual Arabic spelling.