Shikomori

Comorian (Shikomori or Shimasiwa, the "language of islands") is an official language in the Comoros (an independent country of islands in the Indian Ocean, off Mozambique and Madagascar) and widely spoken on the French overseas territory of Mayotte. It is a set of Sabaki languages. Each island has a different dialect and the four are conventionally divided into two groups: the eastern group is composed of Shindzuani (spoken on Anjouan) and Shimaore (Mayotte), while the western group is composed of Shimwali (Mohéli) and Shingazija (Grande Comore). Although the two groups share about 80% of their lexicon, they are not usually mutually intelligible, thus suggesting that they should be considered two language groups rather than four dialects.

Historically, the language was written in the Arabic script. The French colonial administration introduced the Latin script, of which a modified version was officially decreed in 2009; the Arabic script remains widely used and literacy in the Arabic script is higher than in the Latin script.

It is the language of Udzima wa ya Masiwa, the national anthem.