* Spoken in: Uganda
* Number of speakers: 7 million
* Bantu language
* Tonal language
* Subject-verb-object word order
* Uses the Latin script
Bemba
* Spoken in: Zambia, Congo-Kinshasa, Tanzania
* Number of speakers: 5 million
* Bantu language
* Tonal language
* Subject-verb-object word order
* Uses the Latin script
Nyanja
* Spoken in: Malawi, Zambia, Mozambique
* Number of speakers: 15 million
* Bantu language
* Tonal language
* Subject-verb-object word order
* Uses the Latin script
Tsonga
* Spoken in: South Africa, Mozambique, Swaziland, Zimbabwe
* Number of speakers: 5 million
* Bantu language
* Not a tonal language
* Subject-verb-object word order
* Uses the Latin script
Comparison
The four languages are all Bantu languages, which means they share a common ancestor. They all have similar grammatical structures and vocabulary. However, there are also some key differences between the languages.
* Luganda is the only one of the four languages that is a tonal language. This means that the pitch of a syllable can change the meaning of a word.
* Bemba and Nyanja are both spoken in Zambia, but they are not mutually intelligible. This means that speakers of one language cannot understand speakers of the other language.
* Tsonga is not a tonal language, and it is also the only one of the four languages that is not spoken in Zambia.
Conclusion
The four languages Luganda, Bemba, Nyanja, and Tsonga are all Bantu languages that share a common ancestor. However, there are also some key differences between the languages, such as whether or not they are tonal languages and whether or not they are mutually intelligible.