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English definition of “grammar”

grammar

noun     /ˈɡræm.ər/ US  //
A2 [U] (the study or use of) the rules about how words change their form and combine with other words to make sentencesGrammatical terms [C] mainly UK a book of grammar rules: a German grammarReference books
(Definition of grammar noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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