Swahili language
The exact number of Swahili speakers, be it native or second-language speakers, is unknown and a matter of debate. Various estimates have been put forward and they vary widely, from 50 million to over 100 million. Swahili serves as a national language of four nations: Tanzania, Kenya, Uganda, and the DRC. Shikomor, the official language in Comoros and also spoken in Mayotte (), is related to Swahili. Swahili is also one of the working languages of the African Union and officially recognised as a lingua franca of the East African Community. South Africa legalized the teaching of Swahili in South African schools as an optional subject beginning in 2020.
Malawi
Malawi's population is made up of the Chewa, Nyanja, Tumbuka, Yao, Lomwe, Sena, Tonga, Ngoni, and Ngonde native ethnic groups, as well as populations of Asians and Europeans. The official language is English. Major languages include Chichewa, a language spoken by over 57% of the population, Chinyanja (12.8%), Chiyao (10.1%), and Chitumbuka (9.5%). Other native languages are Malawian Lomwe, spoken by around 250,000 in the southeast of the country; Kokola, spoken by around 200,000 people also in the southeast; Lambya, spoken by around 45,000 in the northwestern tip; Ndali, spoken by around 70,000; Nyakyusa-Ngonde, spoken by around 300,000 in northern Malawi; Malawian Sena, spoken by around 270,000 in southern Malawi; and Tonga, spoken by around 170,000 in the north.