korisna

Korisna is a term used in several South Slavic languages and can function primarily as an adjective meaning useful or beneficial. It is the feminine singular form of the adjective koristan, which is used to modify feminine nouns such as informacija (information), usluga (service), or vijest (news) in Croatian, Bosnian, and Serbian. The corresponding masculine and neuter forms are koristan and korisno, respectively. The word derives from the noun korist, meaning benefit or use, with roots in Proto-Slavic.

In everyday usage, korisna describes qualities or items that offer value or practicality. Examples include phrases like "ova informacija je korisna" (this information is useful) or "korisna informacija" (useful information). The term appears in a variety of collocations where usefulness or applicability is emphasized.

Korisna also appears as a geographic toponym in some Slavic-speaking regions. When used as a place name, the term is typically independent of its adjective meaning and reflects local naming traditions or historical context. Specific instances, spellings, and meanings can vary by country and language, and the toponym does not necessarily convey the same nuance as the adjectival form.

Overall, korisna is best understood as a gendered form of the word for usefulness in the relevant languages, with occasional use as a place name in some regions.