Compare each case across both numbers. The forms below are the noun's stored reference paradigm.
Singular and plural case forms for шум
Case
Singular
Plural
Nominative
шум
шумы
Accusative
шум
шумы
Genitive
шума
шумов
Dative
шуму
шумам
Instrumental
шумом
шумами
Prepositional
шуме
шумах
Form pattern
How the forms are built
The paradigm above is authoritative. These notes expose a transparent ending change only when the stored declension family supports one.
Genitive · Singularшум- + -а → шума
Keep the stored stem and add -а.
Show all case-build notes
Nominative · Singularшум
This is the dictionary form used to identify the noun.Nominative · Pluralшум- + -ы → шумы
Keep the stored stem and add -ы.Accusative · Singularшум- + zero ending → шум
Remove the zero ending; this form has a zero ending.Accusative · Pluralшум- + -ы → шумы
Keep the stored stem and add -ы.Genitive · Singularшум- + -а → шума
Keep the stored stem and add -а.Genitive · Pluralшум- + -ов → шумов
Keep the stored stem and add -ов.Dative · Singularшум- + -у → шуму
Keep the stored stem and add -у.Dative · Pluralшум- + -ам → шумам
Keep the stored stem and add -ам.Instrumental · Singularшум- + -ом → шумом
Keep the stored stem and add -ом.Instrumental · Pluralшум- + -ами → шумами
Keep the stored stem and add -ами.Prepositional · Singularшум- + -е → шуме
Keep the stored stem and add -е.Prepositional · Pluralшум- + -ах → шумах
Keep the stored stem and add -ах.