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 the normal development of loanwords and native adjective formation.

Usage-wise, reaalisiin occurs in contexts where real-world or empirical aspects are being discussed or contrasted with theoretical or hypothetical ones. It is commonly found in academic writing, journalism, and formal discourse when referring to real conditions, real-world examples, or real measurements.

Note: As with many inflected forms of Finnish adjectives, reaalisiin is not a standalone dictionary entry but a grammatical form whose precise meaning depends on the noun it modifies and the surrounding context. Learners should rely on accompanying nouns to interpret its sense (e.g., into real-world conditions, toward real-world examples). See also Finnish grammar, illative case, and adjective declension.