1.Definition: 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"

Category: General

2.Definition: a downward slope or bend

Related Noun(s):declination, decline, declivity, descent, downslope, fall

Category: Objects

3.Definition: process of changing to an inferior state

Related Noun(s):deterioration

Category: General

4.Definition: the inflection of nouns and pronouns and adjectives in Indo-European languages

Category: General