Aya = Ayaat (pl.) = One verse of the Qur’an.
Sura = Suwer (pl.) = One chapter of the 114 chapters of the Qur’an
Waqf = Wuqoof (pl.) = Punctuation marks.
Juz = Ajzaa (pl.) = Each of these parts is called a Juz.
The Qur’an is divided into 30 equal parts.
Rub’a = Marking indicating ¼ of a Juz.
Nisf = Marking indicating ½ of a Juz.
Thuluth = Marking indicating ¾ of a Juz