Abstract
A complex,
multicomponent in linguistic, dialectal and ethnic aspects region between the Danube and the Dniester rivers is an interesting object for scientists. Ethnographers and linguists compared such areas with natural laboratories. According to author’s opinion, heuristic potential of Southern Bessarabia laboratory is faintly used now. It is considered that such region needs further in-depth studying in various positions: comparative-historical, because of the fact that different in origin idioms demonstrate high dynamics, sociolinguistic, areal, functional and etc. Such observation gives a lot of new interesting linguistic phenomena, which are
necessary for science and society in various fields, in particular, in practice – in realization of effective and
conflict-free language politics.