What is an official language in every North African country?

There is no single official language that is used in every North African country.

Here's why:

* Diversity of Languages: North Africa is home to a diverse range of languages, including Arabic, Berber dialects, French, and others.

* Official Language Variation: Each country has its own set of official languages:

* Algeria: Arabic (official) and Berber languages (recognized)

* Egypt: Arabic (official)

* Libya: Arabic (official)

* Morocco: Arabic (official), Tamazight (official)

* Sudan: Arabic (official)

* Tunisia: Arabic (official)

* Western Sahara: Arabic (official)

Therefore, while Arabic is the official language in most North African countries, it's not a universal rule. Each country has its own unique linguistic landscape.