Compare each case across both numbers. The forms below are the noun's stored reference paradigm.
Singular and plural case forms for дно
Case
Singular
Plural
Nominative
дно
донья
Accusative
дно
донья
Genitive
дна
доньев
Dative
дну
доньям
Instrumental
дном
доньями
Prepositional
дне
доньях
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 · Singularдн- + -а → дна
Remove -о and add -а.
Show all case-build notes
Nominative · Singularдно
This is the dictionary form used to identify the noun.Nominative · Pluralдно → донья
The stem changes in this stored form, so a simple ending replacement would be misleading.Accusative · Singularдн- + -о → дно
Remove -о and add -о.Accusative · Pluralдно → донья
The stem changes in this stored form, so a simple ending replacement would be misleading.Genitive · Singularдн- + -а → дна
Remove -о and add -а.Genitive · Pluralдно → доньев
The stem changes in this stored form, so a simple ending replacement would be misleading.Dative · Singularдн- + -у → дну
Remove -о and add -у.Dative · Pluralдно → доньям
The stem changes in this stored form, so a simple ending replacement would be misleading.Instrumental · Singularдн- + -ом → дном
Remove -о and add -ом.Instrumental · Pluralдно → доньями
The stem changes in this stored form, so a simple ending replacement would be misleading.Prepositional · Singularдн- + -е → дне
Remove -о and add -е.Prepositional · Pluralдно → доньях
The stem changes in this stored form, so a simple ending replacement would be misleading.