English is the most commonly used foreign language and most of the street plates are bilingual in Literary Arabic and English. There are a few street plates with French instead of English. French and German are also widely spoken and used in business and educated circles.
Arabic came to Egypt in the 7th century, and Egyptian Arabic has become the modern spoken language of the Egyptians and is understood by almost all Egyptians. In southern Egypt, Saidi Arabic is the main spoken language for most non-urbanized people. Of the many varieties of Arabic, Egyptian Arabic is the most widely understood first dialect in the Middle East-North Africa, probably due to the influence of Egyptian cinema throughout the Arabic-speaking world.
About 15,000 Egyptian Berbers living in the Siwa oasis and its surroundings speak Siwi Berber, which is a variety of the Berber language of North Africa. Siwi Berber is well mutually intelligible with Libyan Berber dialects. In ancient times, the population of western Egypt was probably made of Berber-speaking tribes.
^Siwi (siwi or žlan n isiwan) is a Berber language spoken at the oasis of Siwa in western Egypt (Matrūħ Province), about 500 km west of the Nile and 250 km south of the Mediterranean coast, by a little less than 15,000 people, forming a majority of the oasis' population. The nearest Egyptian oasis, Bahariyya, is some 350 km east of Siwa. Siwi is also spoken at the tiny oasis of Gāra near Siwa, and I was told of a multigenerational Siwi community at nearby Jaghbūb in Libya. page 16 of the book GRAMMATICAL CONTACT IN THE SAHARA: Arabic, Berber, and Songhay in Tabelbala and Siwa, August 2010, by: Lameen Souag.