Fadak - A town near Medina.
Fahish - One who talks evil.
Fai - War booty gained without fighting.
Fajr - "The Dawn". The time of the first obligatory prayer. It can be prayed at any time between the first light of dawn and just before sunrise.
Faqih - An Islamic scholar who can give a legal opinion or judgment.
Fara'id - A fixed share for relatives of a deceased.
Fard 'Ain - An action which is obligatory on every Muslim.
Fard Kifayah - It signifies a collective duty of the Muslim community so that if some people carry it out no Muslim is considered blameworthy; but if no one carries it out all incur a collective guilt.
Faridah - An enjoined duty.
Fatat - A female slave or young lady.
Al-Fatiha - The first Surah in the Quran.
Fidyah - Compensation for a missed or wrongly practicing necessary acts of worship. Fidyah usually takes the form of donating money, foodstuffs, or slaughtering an animal.
Fiqh - Islamic jurisprudence.
Firdaus - The middle and the highest part of paradise.
Fitnah - Persecution, trials in religion, conflicts and strife's among the believers.