The coral reef off the coast of Queensland, Australia, in the Coral  Sea is the Great Barrier Reef. It is the world's largest reef  system, composed of over 2,900 individualâ¦ reefs and stretches for  over 1,400 miles over an area of about 133,000 square miles.
KuttÄb means writers, plural katatÄ«b / katÄtÄ«b. In common Modern Arabic usage, maktab means office while maktabah means library or (place of) study and kuttÄb is a plural word meaning books.n the medieval Islamic world, an elementary school was known as a maktab, which dates back to at least the 10th century. Like madrasahs (which referred to higher education), a maktab was often attached to a mosque.
Etymology[edit] AsbÄb is the plural of the Arabic word sabab, which means cause, reason, or occasion, and nuzÅ«l is the verbal noun of the verb root nzl, literally meaning to descend or to send down, and thus (metaphorically) to reveal, referring Allah sending down a revelation to his prophets.