The accusative case (вини́тельный паде́ж, vinítelny padézh) is the case Russian uses for the direct object — the person or thing an action lands on. It is the second case most learners meet, right after the nominative, because you cannot say "I read a book" or "I love you" without it. The surprise for English speakers is that there is no single "accusative ending" to memorize. The accusative is computed from two facts about the noun: its gender, and whether it is animate (a living being) or inanimate (a thing). This page lays out exactly what the accusative looks like for every type of noun, so you always know which form to reach for.
The big idea: the accusative mostly borrows
Russian is economical here. The accusative has its own ending in only one place — the feminine singular. Everywhere else it simply copies another case you already know:
- Inanimate nouns → the accusative is identical to the nominative (стол → стол "table", окно́ → окно́ "window").
- Animate nouns (masculine singular and all plurals) → the accusative is identical to the genitive (брат → бра́та "brother").
- Feminine -а/-я nouns → the accusative has its own ending, -у/-ю (кни́га → кни́гу "book").
- Feminine -ь nouns → the accusative does not change at all (ночь → ночь "night").
So instead of one ending, think of the accusative as a small decision: what gender is this noun, and is it alive? The full animate-vs-inanimate logic gets its own treatment on the animacy rule page; here we focus on getting every form right.
Feminine -а/-я → -у/-ю (the one real ending)
Feminine nouns ending in -а switch to -у; those ending in -я switch to -ю. This is the only place where the accusative looks unmistakably like itself — and animacy makes no difference, so a woman (сестра́ "sister") and a book (кни́га) take the same ending.
| Nominative | Accusative | Gloss |
|---|---|---|
| кни́га | кни́гу | book (hard -а → -у) |
| сестра́ | сестру́ | sister (animate, but same -у) |
| неде́ля | неде́лю | week (soft -я → -ю) |
| ле́кция | ле́кцию | lecture (-ия → -ию) |
| пе́сня | пе́сню | song (soft -я → -ю) |
Я чита́ю интере́сную кни́гу.
I'm reading an interesting book. — кни́га → кни́гу, the dedicated feminine -у object ending (and the adjective follows: интере́сную).
Я слу́шаю но́вую пе́сню.
I'm listening to a new song. — soft-stem пе́сня → пе́сню (-я → -ю).
Мы ждём всю неде́лю.
We've been waiting all week. — неде́ля → неде́лю; the soft mirror of -у.
Masculine and neuter inanimate = nominative
For an inanimate masculine noun (one ending in a consonant or -й) or any neuter noun, do nothing — the accusative is identical to the nominative. The word just sits there.
| Nominative | Accusative | Gloss |
|---|---|---|
| стол | стол | table (masc. inanimate) |
| дом | дом | house |
| музе́й | музе́й | museum (-й, still unchanged) |
| окно́ | окно́ | window (neuter) |
| мо́ре | мо́ре | sea (neuter -е) |
Я ви́жу большо́й дом.
I see a big house. — дом is inanimate, so the accusative = nominative дом (no change).
Откро́й окно́, пожа́луйста.
Open the window, please. — neuter окно́ is unchanged in the accusative.
Masculine animate (and all animate plurals) = genitive
When the object is a living being — a person or an animal — a masculine singular noun takes the genitive form instead. The same is true for every animate plural, regardless of gender. This is the part of the accusative that looks "wrong" to a beginner, because the object ends in a genitive ending you might expect to mean "of."
| Nominative | Accusative (= genitive) | Gloss |
|---|---|---|
| брат | бра́та | brother (masc. animate sg) |
| друг | дру́га | friend |
| врач | врача́ | doctor (end-stressed) |
| студе́нты (pl) | студе́нтов | students (animate plural) |
| ко́шки (pl) | ко́шек | cats (fem., but animate plural) |
Я ви́жу бра́та.
I see my brother. — брат is animate masculine singular, so the accusative = genitive бра́та (never *брат).
Мы пригласи́ли друзе́й.
We invited (our) friends. — animate plural → genitive form друзе́й.
На у́лице я уви́дел ко́шек.
I saw cats on the street. — ко́шка is feminine, but in the plural the animacy rule applies: accusative = genitive ко́шек.
The deep logic of why animate objects "wear" the genitive — and the full set of cases — is on the animacy rule page; the underlying animate/inanimate split is defined under animacy in nouns.
Feminine -ь nouns don't change
A feminine noun ending in the soft sign -ь (third declension: ночь "night", дверь "door", жизнь "life") has an accusative identical to the nominative. There is no -у here — that ending belongs only to the -а/-я feminines.
| Nominative | Accusative | Gloss |
|---|---|---|
| ночь | ночь | night |
| дверь | дверь | door |
| жизнь | жизнь | life |
Закро́й дверь!
Close the door! — дверь (fem. -ь) is unchanged in the accusative.
Мы говори́ли всю ночь.
We talked all night. — ночь stays ночь; the -ь feminines never take -у.
The single irregular here is мать "mother" and дочь "daughter": although they end in -ь, they insert -ер- in every form except the nominative and accusative singular. Crucially, the accusative singular stays мать / дочь (like ночь), but the genitive and plural use the long stem (ма́тери, до́чери; матере́й, дочере́й). So "I love my mother" is Я люблю́ мать — short and unchanged.
Я о́чень люблю́ свою́ мать.
I love my mother very much. — мать is unchanged in the accusative singular, like other -ь feminines.
The whole system in one table
Here is the accusative for every noun type at a glance. Read the right-hand column as the rule: copy the nominative, take the special -у/-ю, or copy the genitive.
| Noun type | Accusative form | Example (nom → acc) |
|---|---|---|
| Feminine -а/-я (sg) | -у / -ю (own ending) | кни́га → кни́гу |
| Feminine -ь (sg) | = nominative | ночь → ночь |
| Masc. inanimate (sg) | = nominative | стол → стол |
| Masc. animate (sg) | = genitive | брат → бра́та |
| Neuter (sg) | = nominative | окно́ → окно́ |
| Inanimate plural (any gender) | = nominative | столы́ → столы́ |
| Animate plural (any gender) | = genitive | студе́нты → студе́нтов |
How this differs from English
English marks the object on word order alone: "I see the brother" puts the brother after the verb, and the noun itself never changes. The only English nouns that change for object position are pronouns — he → him, she → her, they → them. Russian does to every noun what English does to those few pronouns, and it does it with the gender-and-animacy logic above. So where an English speaker writes a single unchanged object, the Russian speaker must decide between three outcomes (own ending, nominative copy, genitive copy). Forgetting this produces the classic beginner error of leaving the object in the dictionary form.
Common Mistakes
❌ Я ви́жу брат.
Incorrect — leaving an animate masculine object in the nominative; the accusative of брат copies the genitive.
✅ Я ви́жу бра́та.
I see my brother. — animate masculine singular → accusative = genitive бра́та.
❌ Я чита́ю кни́га.
Incorrect — leaving a feminine -а noun in the nominative; feminine -а/-я takes the special -у/-ю object ending.
✅ Я чита́ю кни́гу.
I'm reading a book. — кни́га → кни́гу.
❌ Я ви́жу ночу.
Incorrect — adding -у to a feminine -ь noun; the -у ending belongs only to -а/-я feminines.
✅ Я ви́жу ночь.
I see the night. — feminine -ь nouns are unchanged in the accusative.
❌ Я ви́жу стола́.
Incorrect — using the genitive form for an inanimate object; стол is a thing, so its accusative copies the nominative.
✅ Я ви́жу стол.
I see a table. — inanimate → accusative = nominative стол.
Key Takeaways
- The accusative (вини́тельный паде́ж) is the direct-object case; its form is computed from gender + animacy, not from one fixed ending.
- Only feminine -а/-я nouns get a distinct accusative ending: -у/-ю (кни́га → кни́гу, неде́ля → неде́лю), and animacy is irrelevant there.
- Inanimate masculine and neuter nouns, plus all inanimate plurals, copy the nominative (стол → стол, окно́ → окно́).
- Animate masculine singulars and all animate plurals copy the genitive (брат → бра́та, студе́нты → студе́нтов, ко́шки → ко́шек).
- Feminine -ь nouns never change (ночь → ночь); мать and дочь keep their short form in the accusative singular (Я люблю́ мать).
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Start learning Russian→Related Topics
- Accusative: The Direct ObjectA1 — The accusative marks the direct object — the thing a transitive verb acts on directly. Verbs like чита́ть, смотре́ть, люби́ть, ви́деть, знать all take an accusative object (чита́ть кни́гу, люби́ть му́зыку). Because Russian word order is free, the case ending — not position — tells you which noun is being acted upon, so every direct object must be marked. Object pronouns (меня́, тебя́, его́, её, нас, вас, их) are accusative too.
- The Animacy Rule in the AccusativeA2 — The single rule that shapes the Russian accusative: animate objects (people, animals) copy the genitive, inanimate objects (things) copy the nominative. It bites in exactly two places — the masculine singular (ви́жу стол vs ви́жу студе́нта) and the plural of every gender (ви́жу столы́ vs ви́жу студе́нтов/же́нщин/дете́й). Feminine -а/-я singulars are the exception: they take -у/-ю either way. A few nouns are grammatically animate against common sense (ку́кла, ферзь, мертве́ц).
- The Feminine -у Accusative: Your First Case ChangeA1 — The single most visible case change a beginner meets: feminine nouns ending in -а/-я change to -у/-ю when they're the direct object (кни́га → Я чита́ю кни́гу, Москва́ → Я люблю́ Москву́). Masculine inanimate and neuter objects don't change at all, so this is the one everyday object ending you can actually see — making it the perfect first case to drill.
- Animacy in NounsA2 — Russian nouns split into animate (people, animals) and inanimate (things), and this split controls the accusative case: animate nouns take an accusative identical to the genitive (Я ви́жу бра́та), inanimate nouns take an accusative identical to the nominative (Я ви́жу стол); the rule bites in the masculine singular and in the plural of all genders, and a few nouns are grammatically animate against common sense (ку́кла, мертве́ц).
- Genitive: FormsA2 — The genitive (роди́тельный паде́ж) is one of the most-used and most-varied cases. The singular is tidy: masc/neuter -а/-я (стола́, окна́, музе́я), feminine -ы/-и (кни́ги, неде́ли, но́чи). The plural is the single hardest ending set in Russian — a three-way split between zero ending (often with a fleeting vowel: книг, о́кон, де́вушек), -ов/-ев (столо́в, музе́ев, отцо́в), and -ей (ноже́й, словаре́й, ноче́й). Learn the decision procedure, not a word list.
- The Russian Case System: OverviewA1 — Russian has six cases — имени́тельный (nominative), роди́тельный (genitive), да́тельный (dative), вини́тельный (accusative), твори́тельный (instrumental), and предло́жный (prepositional) — and each one is signalled by a change to the noun's ending. This page is your bird's-eye view: the name of each case, the question it answers, the one-line job it does, and one noun (журна́л, magazine) shown running through all six so you can see the whole system at once.