n 1: the inflection of nouns and pronouns and adjectives in
Indo-European languages
2: process of changing to an inferior state [syn: deterioration, decline in quality, worsening]
3: a downward slope [syn: descent, declivity, fall, decline, downslope] [ant: ascent]
4: a class of nouns or pronouns or adjectives in Indo-European
languages having the same (or very similar) inflectional
forms: "the first declension in Latin"