Compare each case across both numbers. The forms below are the noun's stored reference paradigm.
Singular and plural case forms for волос
Case
Singular
Plural
Nominative
волос
волосы
Accusative
волос
волосы
Genitive
волоса
волос
Dative
волосу
волосам
Instrumental
волосом
волосами
Prepositional
волосе
волосах
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 · Singularволос- + -а → волоса
Keep the stored stem and add -а.
Show all case-build notes
Nominative · Singularволос
This is the dictionary form used to identify the noun.Nominative · Pluralволос- + -ы → волосы
Keep the stored stem and add -ы.Accusative · Singularволос- + zero ending → волос
Remove the zero ending; this form has a zero ending.Accusative · Pluralволос- + -ы → волосы
Keep the stored stem and add -ы.Genitive · Singularволос- + -а → волоса
Keep the stored stem and add -а.Genitive · Pluralволос- + zero ending → волос
Remove the zero ending; this form has a zero ending.Dative · Singularволос- + -у → волосу
Keep the stored stem and add -у.Dative · Pluralволос- + -ам → волосам
Keep the stored stem and add -ам.Instrumental · Singularволос- + -ом → волосом
Keep the stored stem and add -ом.Instrumental · Pluralволос- + -ами → волосами
Keep the stored stem and add -ами.Prepositional · Singularволос- + -е → волосе
Keep the stored stem and add -е.Prepositional · Pluralволос- + -ах → волосах
Keep the stored stem and add -ах.