This is where it really helps to love language study. Arabic has a large number of dialects, some of which are not mutually intelligible, but all educated Arabs will know the formal written language, which they consider to be a higher form of their day-to-day speech. This 'higher' language is used in speeches, news programs, lectures and other formal contexts, but never in casual conversation unless differences in dialect make it absolutely necessary. The combination of numerous dialects and a formal/informal continuum is pretty much unique to Arabic and gives rise to fascinating situations watching Arabs calibrate their lanugage based on the situation and the linguistic background of their interlocutor.
- Dan Brickley