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.
Burunge language
Burunge both as a language and distinct designation of peoples are in danger of disappearing as a result of the dominance of Swahili in Tanzania, the small population of Burunge speakers, and also the Burunge clan of approximately thirteen thousand being absorbed into stronger, more populous clans. The Rangi is one such clan; they are a neighboring clan with their own specific language, and not only do they have a larger population than the Burunge, they are also more economically advantaged. The Rangi have subgroup "clubs" within their clan, that male members of the Burungee can officially join to become a member of the Rangi clan. Once someone is a member, they have to shed their identity as a Burunge and become completely Rangi by marrying a Rangi woman and raising their children as Rangi. Many Burunge have joined the Rangi this way over the past few decades, so it is unclear if Burunge as a people and language group will continue to exist as a distinct and separate culture, as the new generations born of both Burunge and Rangi heritage will be seen as and taught only Rangi language and culture.