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Universal grammar theory is a linguistic concept proposed by Noam Chomsky that suggests humans are born with an innate ability to acquire language based on a set of universal grammatical rules.
The LAD is a theoretical concept within universal grammar theory that represents the brain's innate capacity for language acquisition.
Syntax refers to the rules governing word order and sentence structure in language.
Linguistics is the scientific study of language structure, including its sounds (phonetics), meaning (semantics), and grammar (syntax).