What is isoglos?

Answer 1

An isogloss is a linguistic boundary that separates regions based on different language features, such as pronunciation, vocabulary, or grammar. It typically marks the limit of a particular linguistic trait or variation, indicating where one dialect ends and another begins. Isoglosses can be drawn for various aspects of language, and when multiple isoglosses coincide, they often define a dialect area. Understanding isoglosses helps linguists study language change and regional language diversity.