declension /di'klenjn; di'klenjan/ n (gram) [U] varying the endings of nouns, pronouns, and adjectives according to their use in a sentence (eg in Latin), case'(3), decline(4); [C] class of words whose endings for different cases are alike. (文法)名詞，代名詞及形容詞因其在句中(如拉丁文)之用法而生的字尾變化; 各格字尾同形的一類字。