In Serbian grammar, nouns play a crucial role. Nouns are words that name people, places, things, or concepts. They can be classified into several categories based on their gender, number, and case.

Firstly, Serbian nouns have three genders: masculine, feminine, and neuter. Each gender has its own endings and rules for declension. The gender of a noun is determined primarily by its form, but there are some exceptions.

Secondly, Serbian nouns have two numbers: singular and plural. The plural is formed by adding different suffixes to the singular form, depending on the noun’s gender and declension class.

Lastly, Serbian nouns have seven cases: nominative, genitive, dative, accusative, vocative, instrumental, and locative. Each case has its own endings and functions. The case of a noun shows its relationship to other words in a sentence.

Understanding the theory of nouns is essential for learning and mastering Serbian grammar. By recognizing the gender, number, and case of a noun, we can properly use and modify it in various contexts.