dome. 1  a vault, having a circular plan and usually in the form of a portion of a sphere, so constructed as to exert an equal thrust in all directions. 2  a domical roof or ceiling. 3  a polygonal vault, ceiling, or roof.
Egyptian Arabic is used in most social situations, with Modern Standard and Classical Arabic generally only being used in writing and in highly religious and/or formal situations. However, within Egyptian Arabic, there is a wide range of variation.
Arabic vs Egyptian Arabic. I'm traveling to Egypt in the summer and I began studying Rosetta Stone Arabic, but little - if any - of the vocabulary matches what is in the Lonely Planet Egyptian Arabic Phrase Book. I understand that the dialects are different, but I am having trouble finding a definitive answer on HOW different.