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English definition of “declension”


noun     /dɪˈklen.ʃən/
[C] a group of nouns or adjectives that decline in the same way: How many declensions are there in German ? Rex is in the third declensionGrammatical terms [U] the act of declining a word, or the way you decline it → Compare conjugationGrammatical terms
(Definition of declension noun from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)
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