Compare each case across both numbers. The forms below are the noun's stored reference paradigm.
Singular and plural case forms for театр
Case
Singular
Plural
Nominative
театр
театры
Accusative
театр
театры
Genitive
театра
театров
Dative
театру
театрам
Instrumental
театром
театрами
Prepositional
театре
театрах
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 · Singularтеатр- + -а → театра
Keep the stored stem and add -а.
Show all case-build notes
Nominative · Singularтеатр
This is the dictionary form used to identify the noun.Nominative · Pluralтеатр- + -ы → театры
Keep the stored stem and add -ы.Accusative · Singularтеатр- + zero ending → театр
Remove the zero ending; this form has a zero ending.Accusative · Pluralтеатр- + -ы → театры
Keep the stored stem and add -ы.Genitive · Singularтеатр- + -а → театра
Keep the stored stem and add -а.Genitive · Pluralтеатр- + -ов → театров
Keep the stored stem and add -ов.Dative · Singularтеатр- + -у → театру
Keep the stored stem and add -у.Dative · Pluralтеатр- + -ам → театрам
Keep the stored stem and add -ам.Instrumental · Singularтеатр- + -ом → театром
Keep the stored stem and add -ом.Instrumental · Pluralтеатр- + -ами → театрами
Keep the stored stem and add -ами.Prepositional · Singularтеатр- + -е → театре
Keep the stored stem and add -е.Prepositional · Pluralтеатр- + -ах → театрах
Keep the stored stem and add -ах.