- [countable]
(in some languages 用于某些语言 a set of nouns, adjectives or pronouns that change in the same way to show case, number and gender （名词、形容词或代词显示性、数、格的）变格 - [uncountable]
(in some languages 用于某些语言 the way in which some sets of nouns, adjectives and pronouns change their form or endings to show case, number or gender （名词、形容词和代词显示性、数、格的）词形变化
Word Originlate Middle English declinson, from Old French declinaison, from decliner ‘to decline’. The change in the ending was probably due to association with words such as ascension.