The local dialect is difficult for outsiders to understand.
Местный диалект трудно понять посторонним.
Definitionen
A particular form of a language that is peculiar to a specific region or social group.
The southern dialect of the country has a distinct accent and vocabulary.
A variety of a language that is distinguished from other varieties of the same language by features of phonology, grammar, and vocabulary, and by its use by a group of speakers who are set off from others geographically or socially.
Linguists study the dialects of different regions to understand how languages evolve.
A distinct version of a computer programming language that differs from the standard by features of syntax, semantics, or implementation.
Early home computers often ran their own dialects of BASIC.