muovisiin

Muovisiin is a Finnish adjective form derived from muovinen, meaning plastic or made of plastic. In Finnish grammar, muovinen is inflected to agree with the noun it modifies in number and case. Muovisiin is the illative plural form, used with a plural noun in the illative case to indicate movement into or contact with plastic items, or to describe those items as plastic.

The form muovisiin appears most often when the noun it describes is plural and in the illative case, for example muovisiin astioihin (into plastic dishes), muovisiin pulloihin (into plastic bottles), or muovisiin laatikoihin (into plastic boxes). In each case it functions as the adjective describing the material of the objects.

Usage notes:

- Muovisiin is never used alone; it accompanies a plural noun in the illative case.

- It is one of several inflected forms of muovinen, the others covering nominative, genitive, essive, partitive, and other cases for both singular and plural.

Related forms and derivatives:

- muovinen (basic adjective form, singular nominative)

- muoviset (plural nominative, e.g., muoviset astiat)

- muovista, muovisiin, muovisiin jne., covering other cases and numbers

Muovisiin frequently appears in everyday language, packaging labels, educational texts, and contexts discussing materials, recycling, and product composition. It is a standard example of how Finnish adjectives agree with plural nouns in the illative case.