Islamic Glossary · Islam.wiki

A comprehensive glossary of commonly used Islamic terms and their meanings, transliterations, and Arabic script. This reference covers terminology from Quran sciences, hadith, fiqh, aqeedah, spirituality, and Islamic history. Terms are listed alphabetically with their Arabic equivalent.

A

Adhan (أذان): The Islamic call to prayer, announced five times daily from the mosque to summon the faithful. The text was revealed to the Prophet Muhammad and has remained unchanged. It begins with Allahu Akbar (Allah is Greatest) and includes the testimony of faith.
Ahl us-Sunnah wal-Jama'ah (أهل السنة والجماعة): The People of the Sunnah and the Community. The mainstream body of Muslims who follow the Quran, the Sunnah of the Prophet, and the consensus of the Companions. The four madhabs, Athari, Ash'ari, and Maturidi schools all fall within this broad category.
Akhirah (آخرة): The Hereafter. Everything that comes after death: the grave (Barzakh), the Day of Resurrection, the Reckoning, the Bridge (Sirat), and the final abodes of Paradise and Hellfire.
Aqeedah (عقيدة): Islamic creed or theology. The fundamental beliefs a Muslim must hold: belief in Allah, His angels, His books, His messengers, the Last Day, and divine decree.
Asr (عصر): The afternoon obligatory prayer, consisting of four rak'ahs. Its time begins when an object's shadow equals its length and ends at sunset.
Athari (أثري): A school of aqeedah that affirms Allah's names and attributes as they appear in the Quran and Sunnah, without ta'wil (allegorical interpretation), tashbih (likening to creation), or ta'til (denial). The creed of Imam Ahmad ibn Hanbal is its primary reference.

B

Barzakh (برزخ): The barrier or intermediate realm between worldly life and the Hereafter. The period between death and resurrection, during which the soul experiences either the bliss or punishment of the grave.
Bid'ah (بدعة): Innovation in religious matters. Something introduced into the religion without basis in the Quran, Sunnah, or scholarly consensus. The Prophet said: "Every newly-invented matter is an innovation, and every innovation is going astray" (Muslim 867).
Bismillah (بسم الله الرحمن الرحيم): "In the name of Allah, the Most Gracious, the Most Merciful." Recited before beginning any act of worship and recommended before all permissible acts.

D

Da'if (ضعيف): Weak. A hadith classification indicating that the chain of narrators fails to meet the criteria for authenticity. Da'if hadith cannot be used as evidence for religious rulings.
Da'wah (دعوة): Invitation or call to Islam. The act of inviting others to the faith through words, actions, and character. Considered an obligation upon every Muslim according to their ability.
Dhikr (ذكر): Remembrance of Allah through prescribed words of praise, glorification, and supplication. Includes phrases such as Subhanallah, Alhamdulillah, Allahu Akbar, and La ilaha illallah.
Du'a (دعاء): Personal supplication to Allah. Distinct from formal prayer (Salah), du'a is direct conversation with Allah in any language, at any time, asking for any permissible need.

F

Fajr (فجر): The pre-dawn obligatory prayer, consisting of two rak'ahs. Its time begins at true dawn (when light appears on the horizon) and ends at sunrise.
Fatwa (فتوى): A formal religious ruling issued by a qualified Islamic scholar (mufti) in response to a specific question. Fatawa are not universally binding — different madhabs may issue different rulings on the same question.
Fiqh (فقه): Islamic jurisprudence. The human scholarly enterprise of deriving practical rulings from the Quran and Sunnah. Organized into the four recognized madhabs: Hanafi, Maliki, Shafi'i, and Hanbali.
Fitrah (فطرة): Natural disposition. The innate state in which every human being is created, oriented toward recognition of the Creator. The Prophet said every child is born in a state of fitrah (Bukhari 1358).

G–H

Ghusl (غسل): Full ritual bath. Required after major ritual impurity (janabah), menstruation, and post-natal bleeding. Involves rinsing the entire body with water according to prescribed method.
Hadith (حديث): A narration reporting the words, actions, approvals, or physical descriptions of the Prophet Muhammad. The science of hadith authentication (mustalah al-hadith) is one of the most sophisticated verification systems in human history.
Halal (حلال): Permissible according to Islamic law. The default status of all things unless specifically prohibited.
Haram (حرام): Forbidden according to Islamic law. That which is explicitly prohibited by the Quran or authentic Sunnah. Committing haram acts is sinful; refraining from them is rewarded.
Hijab (حجاب): Modesty and covering, typically used to refer to the headscarf worn by Muslim women. More broadly, it refers to the entire system of modesty in dress and behavior for both men and women.
Hijrah (هجرة): Migration. Specifically, the migration of the Prophet Muhammad from Makkah to Madinah in 622 CE, which marks the beginning of the Islamic (Hijri) calendar.

I–J

Ihsan (إحسان): Excellence or perfection in worship. Defined by the Prophet as: "to worship Allah as though you see Him; and if you do not see Him, know that He sees you" (Bukhari 50).
Ijma (إجماع): Scholarly consensus. One of the four major sources of Islamic law. When all qualified Islamic scholars of an era agree on a ruling, that consensus carries binding authority.
Ijtihad (اجتهاد): Independent legal reasoning by a qualified scholar to derive a ruling on a new issue not directly addressed in the Quran or Sunnah.
Iman (إيمان): Faith. Defined as belief in the heart, declaration with the tongue, and action with the limbs. It increases with obedience and decreases with sin.
Isnad (إسناد): The chain of narrators transmitting a hadith. Each narrator in the chain is evaluated for reliability, memory, continuity of transmission, and absence of defects.
Jannah (جنة): Paradise. The eternal abode of the believers, described in the Quran as containing rivers of water, milk, honey, and wine (of a purified kind), and as surpassing all earthly imagination.
Jihad (جهاد): Striving in the path of Allah. Encompasses internal struggle against the ego and sin, striving to establish justice, and — under strict scholarly conditions — armed defense. The term is often misunderstood in contemporary discourse.

K–M

Kafir (كافر): One who disbelieves. A technical theological term; its application to specific individuals is a serious matter that requires scholarly precision and is not to be used casually.
Khalifah (خليفة): Caliph or successor. The leader of the Muslim community. After the Prophet, the Rashidun (rightly-guided) caliphs were Abu Bakr, Umar, Uthman, and Ali.
Madhab (مذهب): School of Islamic jurisprudence. The four recognized madhabs of Sunni Islam are Hanafi, Maliki, Shafi'i, and Hanbali. All four are considered valid and complete.
Mufti (مفتي): A scholar qualified to issue fatawa (legal rulings). Requires extensive training in usul al-fiqh, hadith, Arabic, and the positions of the major madhabs.
Mushrik (مشرك): One who commits shirk, associating partners with Allah in worship. The gravest sin in Islam, described in the Quran as unforgivable if died upon (Quran 4:48).

N–Q

Nafs (نفس): The soul or self. The Quran describes three states: the commanding nafs (inclined to evil), the self-reproaching nafs, and the tranquil nafs that returns to its Lord in contentment.
Niyyah (نية): Intention. The internal resolve to perform an act of worship. The Prophet said: "Actions are by intentions, and every person shall have what they intended" (Bukhari 1).
Qadr (قدر): Divine decree. One of the six pillars of faith. Encompasses Allah's eternal knowledge of all events, His recording of them, His will over them, and His creation of them.
Qiblah (قبلة): The direction of prayer, toward the Ka'bah in Makkah. Muslims worldwide orient themselves toward the Qiblah for the five daily prayers.
Qiyas (قياس): Analogical reasoning. One of the sources of Islamic law, used when a new situation is analogous to one already addressed by the Quran or Sunnah.

R–S

Rak'ah (ركعة): A unit of prayer consisting of standing, recitation, bowing, prostration, and sitting. Each of the five daily prayers consists of a set number of rak'ahs.
Sahih (صحيح): Authentic. The highest hadith classification. A sahih hadith has a continuous chain of reliable narrators, no hidden defects, and no contradiction of stronger narrations.
Salah (صلاة): The five daily obligatory prayers. The second pillar of Islam and the most important act of worship after the testimony of faith.
Sahabah (صحابة): The Companions of the Prophet. Those who met him, believed in him, and died upon Islam. Ahl us-Sunnah holds all Companions in the highest regard.
Shirk (شرك): Associating partners with Allah in any act of worship. The only sin Allah has declared He will not forgive if died upon.
Sunnah (سنة): The way of the Prophet Muhammad — his words, actions, approvals, and characteristics. The second source of Islamic law after the Quran.

T–Z

Taqwa (تقوى): God-consciousness, piety, or fear of Allah. The quality of being ever-aware of Allah's sight and striving to fulfill His commands and avoid His prohibitions.
Tawhid (توحيد): The absolute Oneness of Allah — in His lordship, in the worship due to Him alone, and in His names and attributes. The central concept of Islamic theology.
Tawbah (توبة): Repentance. Returning to Allah after sin. Valid repentance requires ceasing the sin, regretting it, and firmly resolving not to return to it. If the sin involved another's rights, those must be restored.
Ummah (أمة): The global community of Muslims. A concept that transcends nationality, ethnicity, and geography, uniting over 1.8 billion people under a shared faith.
Wudu (وضوء): Ritual ablution required before prayer and other acts of worship. Involves washing the face, hands to the elbows, wiping the head, and washing the feet to the ankles.
Zakat (زكاة): Obligatory charity. The third pillar of Islam. Muslims who possess wealth above a minimum threshold (nisab) for one lunar year must give 2.5% of that wealth annually to the eight categories of recipients specified in the Quran (9:60).
Zuhd (زهد): Asceticism or detachment from worldly excess. A virtue praised throughout the Quran and Sunnah; it does not mean poverty but rather not allowing worldly possessions to distract from Allah.

A

Adhan (أذان): The Islamic call to prayer, announced five times daily from the mosque to summon the faithful. The text was revealed to the Prophet Muhammad and has remained unchanged. It begins with Allahu Akbar (Allah is Greatest) and includes the testimony of faith.
Ahl us-Sunnah wal-Jama'ah (أهل السنة والجماعة): The People of the Sunnah and the Community. The mainstream body of Muslims who follow the Quran, the Sunnah of the Prophet, and the consensus of the Companions. The four madhabs, Athari, Ash'ari, and Maturidi schools all fall within this broad category.
Akhirah (آخرة): The Hereafter. Everything that comes after death: the grave (Barzakh), the Day of Resurrection, the Reckoning, the Bridge (Sirat), and the final abodes of Paradise and Hellfire.
Aqeedah (عقيدة): Islamic creed or theology. The fundamental beliefs a Muslim must hold: belief in Allah, His angels, His books, His messengers, the Last Day, and divine decree.
Asr (عصر): The afternoon obligatory prayer, consisting of four rak'ahs. Its time begins when an object's shadow equals its length and ends at sunset.
Athari (أثري): A school of aqeedah that affirms Allah's names and attributes as they appear in the Quran and Sunnah, without ta'wil (allegorical interpretation), tashbih (likening to creation), or ta'til (denial). The creed of Imam Ahmad ibn Hanbal is its primary reference.

B

Barzakh (برزخ): The barrier or intermediate realm between worldly life and the Hereafter. The period between death and resurrection, during which the soul experiences either the bliss or punishment of the grave.
Bid'ah (بدعة): Innovation in religious matters. Something introduced into the religion without basis in the Quran, Sunnah, or scholarly consensus. The Prophet said: "Every newly-invented matter is an innovation, and every innovation is going astray" (Muslim 867).
Bismillah (بسم الله الرحمن الرحيم): "In the name of Allah, the Most Gracious, the Most Merciful." Recited before beginning any act of worship and recommended before all permissible acts.

D

Da'if (ضعيف): Weak. A hadith classification indicating that the chain of narrators fails to meet the criteria for authenticity. Da'if hadith cannot be used as evidence for religious rulings.
Da'wah (دعوة): Invitation or call to Islam. The act of inviting others to the faith through words, actions, and character. Considered an obligation upon every Muslim according to their ability.
Dhikr (ذكر): Remembrance of Allah through prescribed words of praise, glorification, and supplication. Includes phrases such as Subhanallah, Alhamdulillah, Allahu Akbar, and La ilaha illallah.
Du'a (دعاء): Personal supplication to Allah. Distinct from formal prayer (Salah), du'a is direct conversation with Allah in any language, at any time, asking for any permissible need.

F

Fajr (فجر): The pre-dawn obligatory prayer, consisting of two rak'ahs. Its time begins at true dawn (when light appears on the horizon) and ends at sunrise.
Fatwa (فتوى): A formal religious ruling issued by a qualified Islamic scholar (mufti) in response to a specific question. Fatawa are not universally binding — different madhabs may issue different rulings on the same question.
Fiqh (فقه): Islamic jurisprudence. The human scholarly enterprise of deriving practical rulings from the Quran and Sunnah. Organized into the four recognized madhabs: Hanafi, Maliki, Shafi'i, and Hanbali.
Fitrah (فطرة): Natural disposition. The innate state in which every human being is created, oriented toward recognition of the Creator. The Prophet said every child is born in a state of fitrah (Bukhari 1358).

G–H

Ghusl (غسل): Full ritual bath. Required after major ritual impurity (janabah), menstruation, and post-natal bleeding. Involves rinsing the entire body with water according to prescribed method.
Hadith (حديث): A narration reporting the words, actions, approvals, or physical descriptions of the Prophet Muhammad. The science of hadith authentication (mustalah al-hadith) is one of the most sophisticated verification systems in human history.
Halal (حلال): Permissible according to Islamic law. The default status of all things unless specifically prohibited.
Haram (حرام): Forbidden according to Islamic law. That which is explicitly prohibited by the Quran or authentic Sunnah. Committing haram acts is sinful; refraining from them is rewarded.
Hijab (حجاب): Modesty and covering, typically used to refer to the headscarf worn by Muslim women. More broadly, it refers to the entire system of modesty in dress and behavior for both men and women.
Hijrah (هجرة): Migration. Specifically, the migration of the Prophet Muhammad from Makkah to Madinah in 622 CE, which marks the beginning of the Islamic (Hijri) calendar.

I–J

Ihsan (إحسان): Excellence or perfection in worship. Defined by the Prophet as: "to worship Allah as though you see Him; and if you do not see Him, know that He sees you" (Bukhari 50).
Ijma (إجماع): Scholarly consensus. One of the four major sources of Islamic law. When all qualified Islamic scholars of an era agree on a ruling, that consensus carries binding authority.
Ijtihad (اجتهاد): Independent legal reasoning by a qualified scholar to derive a ruling on a new issue not directly addressed in the Quran or Sunnah.
Iman (إيمان): Faith. Defined as belief in the heart, declaration with the tongue, and action with the limbs. It increases with obedience and decreases with sin.
Isnad (إسناد): The chain of narrators transmitting a hadith. Each narrator in the chain is evaluated for reliability, memory, continuity of transmission, and absence of defects.
Jannah (جنة): Paradise. The eternal abode of the believers, described in the Quran as containing rivers of water, milk, honey, and wine (of a purified kind), and as surpassing all earthly imagination.
Jihad (جهاد): Striving in the path of Allah. Encompasses internal struggle against the ego and sin, striving to establish justice, and — under strict scholarly conditions — armed defense. The term is often misunderstood in contemporary discourse.

K–M

Kafir (كافر): One who disbelieves. A technical theological term; its application to specific individuals is a serious matter that requires scholarly precision and is not to be used casually.
Khalifah (خليفة): Caliph or successor. The leader of the Muslim community. After the Prophet, the Rashidun (rightly-guided) caliphs were Abu Bakr, Umar, Uthman, and Ali.
Madhab (مذهب): School of Islamic jurisprudence. The four recognized madhabs of Sunni Islam are Hanafi, Maliki, Shafi'i, and Hanbali. All four are considered valid and complete.
Mufti (مفتي): A scholar qualified to issue fatawa (legal rulings). Requires extensive training in usul al-fiqh, hadith, Arabic, and the positions of the major madhabs.
Mushrik (مشرك): One who commits shirk, associating partners with Allah in worship. The gravest sin in Islam, described in the Quran as unforgivable if died upon (Quran 4:48).

N–Q

Nafs (نفس): The soul or self. The Quran describes three states: the commanding nafs (inclined to evil), the self-reproaching nafs, and the tranquil nafs that returns to its Lord in contentment.
Niyyah (نية): Intention. The internal resolve to perform an act of worship. The Prophet said: "Actions are by intentions, and every person shall have what they intended" (Bukhari 1).
Qadr (قدر): Divine decree. One of the six pillars of faith. Encompasses Allah's eternal knowledge of all events, His recording of them, His will over them, and His creation of them.
Qiblah (قبلة): The direction of prayer, toward the Ka'bah in Makkah. Muslims worldwide orient themselves toward the Qiblah for the five daily prayers.
Qiyas (قياس): Analogical reasoning. One of the sources of Islamic law, used when a new situation is analogous to one already addressed by the Quran or Sunnah.

R–S

Rak'ah (ركعة): A unit of prayer consisting of standing, recitation, bowing, prostration, and sitting. Each of the five daily prayers consists of a set number of rak'ahs.
Sahih (صحيح): Authentic. The highest hadith classification. A sahih hadith has a continuous chain of reliable narrators, no hidden defects, and no contradiction of stronger narrations.
Salah (صلاة): The five daily obligatory prayers. The second pillar of Islam and the most important act of worship after the testimony of faith.
Sahabah (صحابة): The Companions of the Prophet. Those who met him, believed in him, and died upon Islam. Ahl us-Sunnah holds all Companions in the highest regard.
Shirk (شرك): Associating partners with Allah in any act of worship. The only sin Allah has declared He will not forgive if died upon.
Sunnah (سنة): The way of the Prophet Muhammad — his words, actions, approvals, and characteristics. The second source of Islamic law after the Quran.

T–Z

Taqwa (تقوى): God-consciousness, piety, or fear of Allah. The quality of being ever-aware of Allah's sight and striving to fulfill His commands and avoid His prohibitions.
Tawhid (توحيد): The absolute Oneness of Allah — in His lordship, in the worship due to Him alone, and in His names and attributes. The central concept of Islamic theology.
Tawbah (توبة): Repentance. Returning to Allah after sin. Valid repentance requires ceasing the sin, regretting it, and firmly resolving not to return to it. If the sin involved another's rights, those must be restored.
Ummah (أمة): The global community of Muslims. A concept that transcends nationality, ethnicity, and geography, uniting over 1.8 billion people under a shared faith.
Wudu (وضوء): Ritual ablution required before prayer and other acts of worship. Involves washing the face, hands to the elbows, wiping the head, and washing the feet to the ankles.
Zakat (زكاة): Obligatory charity. The third pillar of Islam. Muslims who possess wealth above a minimum threshold (nisab) for one lunar year must give 2.5% of that wealth annually to the eight categories of recipients specified in the Quran (9:60).
Zuhd (زهد): Asceticism or detachment from worldly excess. A virtue praised throughout the Quran and Sunnah; it does not mean poverty but rather not allowing worldly possessions to distract from Allah.