dualnej

Dualnej is not a standalone concept in most English-language sources. In Polish, dualnej is a feminine singular inflection of the adjective dualny (meaning "dual" or "twofold"). Specifically, dualnej is used for feminine nouns in certain cases, most commonly the genitive singular, and also appears in the dative and locative singular forms in some contexts. The corresponding base forms are dualny (masculine nominative), dualna (feminine nominative), and dualne (neuter nominative).

As a grammatical form, dualnej serves to describe a feminine noun in sentences where the noun requires the feminine genitive, dative, or locative ending. It is not a separate lexical entry with its own meaning beyond what the base adjective conveys; its significance lies in proper agreement within Polish morphology. For example, in phrases referring to a feminine noun in a case that requires the form dualnej, the adjective will agree in gender, number, and case with that noun.

Semantically, dualny and its inflected forms carry the sense of duality or twofold nature. In Polish texts, such forms can appear in philosophical, scientific, or literary contexts discussing bipartite characteristics, two aspects of a phenomenon, or paired attributes.

In summary, dualnej is the feminine singular inflection of the Polish adjective dualny used to describe a feminine noun in specific grammatical cases. It represents a grammatical form rather than a separate topic, and it illustrates how Polish adjectives agree with feminine nouns in terms of case and number. See Polish grammar and adjective declension for related information.