Reaalisiin
Reaalisiin is the illative plural form of the Finnish adjective reaallinen, meaning "real" or "practical." In Finnish, adjectives decline to agree with the noun they modify in number and case. The illative plural is used to denote movement into or reference to real-world conditions, contexts, or examples, as in phrases like reaalisiin olosuhteisiin (into real-world conditions) or reaalisiin esimerkkeihin (to real-world examples). The form contrasts with the singular illative form reaaliin and with other cases such as reaaliset (plural nominative). The root remains reaali-, with the -nen suffix indicating the adjective, and the illative plural suffix -isiin appended.
Etymology-wise, reaallinen derives from reaali-, which in turn comes from Latin realis, passing into Finnish through
Usage-wise, reaalisiin occurs in contexts where real-world or empirical aspects are being discussed or contrasted with
Note: As with many inflected forms of Finnish adjectives, reaalisiin is not a standalone dictionary entry but