костюм (kostyum) - suit
Every form of the Russian noun костюм: 6 cases, singular and plural, stress marked.
| Case | Singular | Plural | |
|---|---|---|---|
| Nominativeименительный · кто? что? | костюм | костюмы | the subject: who or what acts |
| Accusativeвинительный · кого? что? | костюм | костюмы | the direct object of the verb |
| Genitiveродительный · кого? чего? | костюма | костюмов | possession, absence, "of"-phrases |
| Dativeдательный · кому? чему? | костюму | костюмам | the receiver: to or for someone |
| Instrumentalтворительный · кем? чем? | костюмом | костюмами | the tool or companion: with, by |
| Prepositionalпредложный · о ком? о чём? | костюме | костюмах | location and topics: in, at, about |
Костюм is a masculine noun; the ending pattern above repeats across most masculine nouns, so every table you learn makes the next one cheaper.
Look up any other word in the Russian declension tool, see where костюм ranks in the most common Russian words, or start from Russian cases explained if the table above is new territory. More vocabulary lives in Russian words by topic and Russian phrases.
12 forms is a table. Using them is a skill.
Slova drills костюм and every word like it with typed case endings, checked letter by letter.