Noun reference

сестра

sister

Feminine · Animate

Feminine -а family

Case paradigm

Singular and plural together

Compare each case across both numbers. The forms below are the noun's stored reference paradigm.

Singular and plural case forms for сестра
Case	Singular	Plural
Nominative	сестра	сёстры
Accusative	сестру	сестёр
Genitive	сестры	сестёр
Dative	сестре	сёстрам
Instrumental	сестройLong instrumental variant: сестрою Accepted in practice	сёстрами
Prepositional	сестре	сёстрах

Form pattern

The paradigm above is authoritative. These notes expose a transparent ending change only when the stored declension family supports one.

Genitive · Singular сестр- + -ы → сестры

Remove -а and add -ы.

Show all case-build notes

Nominative · Singular сестра This is the dictionary form used to identify the noun.

Nominative · Plural сестра → сёстры The stem changes in this stored form, so a simple ending replacement would be misleading.

Accusative · Singular сестр- + -у → сестру Remove -а and add -у.

Accusative · Plural сестра → сестёр The stem changes in this stored form, so a simple ending replacement would be misleading.

Genitive · Singular сестр- + -ы → сестры Remove -а and add -ы.

Genitive · Plural сестра → сестёр The stem changes in this stored form, so a simple ending replacement would be misleading.

Dative · Singular сестр- + -е → сестре Remove -а and add -е.

Dative · Plural сестра → сёстрам The stem changes in this stored form, so a simple ending replacement would be misleading.

Instrumental · Singular сестр- + -ой → сестрой Remove -а and add -ой.

Instrumental · Plural сестра → сёстрами The stem changes in this stored form, so a simple ending replacement would be misleading.

Prepositional · Singular сестр- + -е → сестре Remove -а and add -е.

Prepositional · Plural сестра → сёстрах The stem changes in this stored form, so a simple ending replacement would be misleading.