вирус (virus) - virus
Every form of the Russian noun вирус: 6 cases, singular and plural, stress marked.
| Case | Singular | Plural | |
|---|---|---|---|
| Nominativeименительный · кто? что? | вирус | вирусы | the subject: who or what acts |
| Accusativeвинительный · кого? что? | вирус | вирусы | the direct object of the verb |
| Genitiveродительный · кого? чего? | вируса | вирусов | possession, absence, "of"-phrases |
| Dativeдательный · кому? чему? | вирусу | вирусам | the receiver: to or for someone |
| Instrumentalтворительный · кем? чем? | вирусом | вирусами | the tool or companion: with, by |
| Prepositionalпредложный · о ком? о чём? | вирусе | вирусах | location and topics: in, at, about |
Вирус 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 вирус 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 вирус and every word like it with typed case endings, checked letter by letter.