universal grammar
noun/ˌjuːnɪvɜːsl ˈɡræmə(r)/
/ˌjuːnɪvɜːrsl ˈɡræmər/
[uncountable, countable] (linguistics)- the set of rules that is thought to be able to describe all languages
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universal grammar
Definition of universal grammar noun from the Oxford Advanced Learner's Dictionary