Questions tagged [comparative-linguistics]

Questions related to comparative linguistics that are relevant to language learning or teaching. Comparative linguistics is a branch of linguistics that studies and compares languages to establish whether they are historically related. Use the tag 'language-comparison' for questions that are not about the historical relationship between languages.

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What metrics can be used to gauge language similarity?

What metrics exist to describe relative language similarity? I've sometimes heard Spanish and Portuguese said to be something like "70% mutually intelligible." Although mutual intelligibility in this ...