Bid'ah: An innovation or novelty; in this book it refers to religious innovations.
Dinar & Dirham: A type of money.
Fareedhah: An obligatory act of worship.
Fitnah: Trial, strife and tribulation.
Hadeeth: Prophetic Tradition.
Hawdh: The Pool which Allah, the Exalted, has granted our Prophet on the Day of Resurrection. Whoever drinks from it once, would never feel thirsty again.
Hudood: Castigatory punishments in Islam.
Hukum: Ruling.
Ijtihaad: In general, it is the exertion of effort. In this book it refers to exertion of one's effort to reach a ruling in an issue.
I'tikaaf: In general, it refers to seclusion. I'tikaaf is an act of worship whereby the person secludes himself in the Masjid and worships Allah.
Iman: Belief.
Jannah: This is the Heavenly Abode or Heavenly Gardens which Allah grants the pious slaves in the Hereafter. It is mistranslated as 'Paradise'.
Kufr: Disbelief.
Nafl: Supererogatory acts of worship.
Shaitan: Satan.
Shari'ah: Islamic Jurisprudential Law.
Shirk: Associating partners with Allah.
Sunnah: Has more than one meaning. It may refer to:
Prophetic Traditions.
Rulings; i.e. it would then mean that the act is endorsed by the Sunnah.
Taraweeh: Night prayers, which are prayed during Ramadhan.
Taqwah: Piety.
Ummah: Nation.
Wali: The pious, god-fearing, upright Muslim, who is mindful of Allah, observes acts of worship, and abstains from the unlawful.