Universal Grammar refers to innate linguistic knowledge that guides children in language acquisition by defining the range of possible human languages and providing a procedure for learning the correct grammar. According to Chomsky, Universal Grammar is a theory about the nature of possible grammars. It helps children acquire language through principles, which are invariant properties of language, and parameters, a small set of dimensions along which languages can vary, such as the head-position parameter determining word order and the WH-parameter related to question formation.







