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CaseSingularPlural
Nominativeименительный · кто? что?заяц зайцы the subject: who or what acts
Accusativeвинительный · кого? что?зайца зайцев the direct object of the verb
Genitiveродительный · кого? чего?зайца зайцев possession, absence, "of"-phrases
Dativeдательный · кому? чему?зайцу зайцам the receiver: to or for someone
Instrumentalтворительный · кем? чем?зайцем зайцами the tool or companion: with, by
Prepositionalпредложный · о ком? о чём?зайце зайцах location and topics: in, at, about

Заяц is animate, so its accusative copies the genitive: the form after "I see..." matches the form after "of".

Look up any other word in the Russian declension tool, see where заяц 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.

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