Word «длинный» is an adjective in the Russian language, and therefore «длинны» forms a part of the adjectives. Adjectives are words that serve to describe or modify nouns or pronouns in a sentence. They usually express a quality, attribute, or characteristic of the noun or pronoun they are modifying.
In the case of the word «длинны», it is the plural form of the adjective «длинный», which means «long» in English. As a plural adjective, «длинны» is used to modify plural nouns, such as «длинные волосы» (long hair), or «длинные полотенца» (long towels).
Adjectives in the Russian language can have different endings depending on the gender, case and number of the noun they are modifying. For example, the masculine singular form of the adjective «длинный» changes to «длинное» in the neuter gender, «длинная» in the feminine gender, and «длинные» in the plural number.
The use of adjectives is an important aspect of the Russian language, as they help to give more information about the noun or pronoun in a sentence. Adjectives can also be used to express opinions, emotions, or attitudes towards the noun they are describing. For example, «длинный день» (long day) can imply a tiring and exhausting day, while «длинные волосы» (long hair) can be seen as a sign of beauty and femininity.
In conclusion, the word «длинны» is a part of the adjectives in the Russian language, and is used to modify plural nouns. Adjectives are important in expressing qualities and characteristics of nouns and pronouns, and can also convey emotions and attitudes.