In Finnish grammar, nouns play a crucial role in sentence formation and communication. A noun represents a person, place, thing, or idea and functions as the subject or object of a sentence. It is characterized by its case, number, and gender.

Finnish nouns are classified into two genders: masculine and neuter. However, unlike some other languages, gender in Finnish grammar does not affect the form of the noun. The noun’s case and number, on the other hand, have a significant impact on its form. Finnish has a system of 15 noun cases, each serving a specific grammatical function, such as nominative, genitive, accusative, and partitive.

Furthermore, Finnish nouns can also be singular or plural. The plural form is usually created by adding the suffix -t or -it to the stem of the noun. However, there are certain noun types that have irregular plural forms.

Understanding the theory of nouns in Finnish grammar is essential for properly constructing sentences and conveying meaning accurately. It is an integral part of mastering the Finnish language and its complex grammatical structure.