This document provides an introduction to A Dictionary of Egyptian Arabic-English. It discusses the linguistic levels and varieties of Egyptian Arabic that the dictionary covers. These include two levels of Modern Standard Arabic (MSA), three levels of Egyptian colloquial Arabic, and foreign borrowings. The introduction explains the classification system used to distinguish the varieties and provides examples of phonological, morphological, and syntactic differences between the colloquial levels. It also discusses the sources and periods of foreign influences on Egyptian Arabic vocabulary.