Compare each case across both numbers. The forms below are the noun's stored reference paradigm.
Singular and plural case forms for смех
Case
Singular
Plural
Nominative
смех
смехи
Accusative
смех
смехи
Genitive
смеха
смехов
Dative
смеху
смехам
Instrumental
смехом
смехами
Prepositional
смехе
смехах
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 · Singularсмех- + -а → смеха
Keep the stored stem and add -а.
Show all case-build notes
Nominative · Singularсмех
This is the dictionary form used to identify the noun.Nominative · Pluralсмех- + -и → смехи
Keep the stored stem and add -и.Accusative · Singularсмех- + zero ending → смех
Remove the zero ending; this form has a zero ending.Accusative · Pluralсмех- + -и → смехи
Keep the stored stem and add -и.Genitive · Singularсмех- + -а → смеха
Keep the stored stem and add -а.Genitive · Pluralсмех- + -ов → смехов
Keep the stored stem and add -ов.Dative · Singularсмех- + -у → смеху
Keep the stored stem and add -у.Dative · Pluralсмех- + -ам → смехам
Keep the stored stem and add -ам.Instrumental · Singularсмех- + -ом → смехом
Keep the stored stem and add -ом.Instrumental · Pluralсмех- + -ами → смехами
Keep the stored stem and add -ами.Prepositional · Singularсмех- + -е → смехе
Keep the stored stem and add -е.Prepositional · Pluralсмех- + -ах → смехах
Keep the stored stem and add -ах.