Languages of India | Caucasian | Indo-European languages | Celtic languages | Slavic languages | Caucasian race | Algonquian languages | Turkic languages | Bantu languages | Romance languages | Berber languages | Australian Aboriginal languages | Germanic languages | Northeast Region, Brazil | Goidelic languages | Arawakan languages | North Germanic languages | Indigenous languages of the Americas | Austroasiatic languages | Indo-Aryan languages | Polynesian languages | Northeast Philadelphia | Northwest Caucasian languages | Northeast Corridor | Northeast | Munda languages | Mongolic languages | French-based creole languages | Songhay languages | Semitic languages |
Many North Caucasian languages (Northwest and especially Northeast) have a consonantal distinction described as "strong" or "preruptive" that has concomitant length.
The database has an especially large selection of indigenous South American languages and Northeast Caucasian languages.
Peoples of the Caucasus who speak languages which have long been indigenous to the region are generally classified into three groups: Kartvelian peoples, Northeast Caucasian peoples and Northwest Caucasian peoples.