In which country is the Swahili language used?

Swahili is primarily spoken in East Africa, specifically in the following countries:

* Tanzania (where it's an official language)

* Kenya (where it's an official language)

* Uganda

* Rwanda

* Burundi

* Democratic Republic of Congo

* Somalia

* Mozambique

* Malawi

* Zambia

* Comoros

It's also spoken in some parts of South Africa and Seychelles.

Swahili has become a significant language in the region, often serving as a lingua franca (common language) for communication between people who speak different native languages.