Chad has two official languages, Arabic and French, and over 120 indigenous languages. A vernacular version of Arabic, Chadian Arabic, is a lingua franca and the language of commerce, spoken by 40–60% of the population. The two official languages have fewer speakers than Chadian Arabic.[citation needed] Standard Arabic is spoken by around 615,000 speakers. French is widely spoken in the main cities such as N'Djamena and by most men in the south of the country. Most schooling is in French. The language with the most first-language speakers is probably Ngambay, with around one million speakers. (Source: Wikipedia.org, CC BY-SA)