Start training
CaseSingularPlural
Nominativeименительный · кто? что?сыр сыры the subject: who or what acts
Accusativeвинительный · кого? что?сыр сыры the direct object of the verb
Genitiveродительный · кого? чего?сыра сыров possession, absence, "of"-phrases
Dativeдательный · кому? чему?сыру сырам the receiver: to or for someone
Instrumentalтворительный · кем? чем?сыром сырами the tool or companion: with, by
Prepositionalпредложный · о ком? о чём?сыре сырах location and topics: in, at, about

Сыр 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 сыр 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 сыр and every word like it with typed case endings, checked letter by letter.

Train this in Slova