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How do linguists decide whether two ways of speaking are separate languages or dialects?
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Language
Spoken language is just one type of language, which has been defined in many different ways across history.
Linguists often find it difficult to distinguish between separate languages and dialects, as the decision is frequently based on factors beyond purely linguistic structure.1
While there is no single, objective rule, linguists typically consider the following criteria:
- Mutual Intelligibility: A common, though relative, benchmark is that dialects of the same language are mutually intelligible, whereas different languages are not. However, this is rarely absolute, as speakers of closely related languages can often communicate to some extent.1
- Sociopolitical Factors: Distinctions are often driven by social or political circumstances rather than linguistic ones. Varieties once considered dialects of a single language may be reclassified as distinct languages following shifts in national identity or ethnic conflict, as seen in the Balkans during the 1990s.1
- Standardization: In more developed societies, the presence of a standard language often makes the distinction easier to define, as the standard variety is granted special prestige over other regional or social dialects.1
Ultimately, in many cases, the classification of a speech variety as a language versus a dialect remains to some extent arbitrary.1