retkiin

Retkiin is the illative plural form of the Finnish noun retki, meaning excursions or trips. It denotes movement toward or participation in several excursions and is used to express involvement in multiple planned outings.

In Finnish grammar, the illative case expresses direction into something or into a state. With retkiin, it commonly appears in phrases such as retkiin osallistuminen (participation in trips), retkiin liittyvä suunnittelu (planning related to trips), and retkiin valmistautuminen (preparation for trips). The form is typically found in more formal or written contexts, such as education, organizational planning, or travel-related discussions.

Etymology and form: retki is a common Finnish word used in everyday language; retkiin is the illative plural, formed from retki by adding -iin in accordance with standard Finnish declension. As with other illative plurals, its exact usage depends on the surrounding verbs and nouns that govern movement toward or involvement in the trips.

See also: luokkaretki, päiväretki, retkikunta.