Zabbaleen
The Zabbaleen ( ', ) is a word which literally means "garbage people" in Egyptian Arabic. The contemporary use of the word in Egyptian Arabic is to mean "garbage collectors". In cultural contexts, the word refers to teenagers and adults who have served as Cairo's informal garbage collectors since approximately the 1940s. The Zabbaleen (singular: ', ) are also known as Zarraba (singular: Zarrab), which means "pig-pen operators." The word ' came from the Egyptian Arabic word ' (, ) which means "garbage".
Zabulistan
Zābulistān (Persian: زابلستان) which is the Persian name of the region, literally means "the land of Zābul". The etymology of the name Zābul has been marred with speculation. The German historian Marquart, proposed the word, including its uncommon Medieval variant Jāwulistān (Persian: جابلستان) as being a variation of the Sanskrit term. Others have speculated that the word "zābul" might be an abbreviation of "zūnbīl", a supposed royal title of the region known from Arabic sources, earlier read as "rutbīl", and now used to refer to a local dynasty of Zamindawar now called the Zunbils. This notion however currently stands on loose ground, and Minorsky holds that the consonant resemblance between these two words look merely fortuitous.