piikkiin

Piikkiin is the illative singular form of the Finnish noun piikki, which refers to a sharp point such as a spike, needle, pin, or thorn. In Finnish, the illative case expresses movement into or toward something, or direction toward a location. Therefore piikkiin is used when describing going into or toward a piikki or into the space associated with a piikki, rather than simply naming the object.

The noun piikki means a sharp projection or pointed object, commonly encountered as a needle, pin, or spike. The illative form piikkiin is formed by adding the illative suffix -in to the stem piikki; because the stem ends in i, the result contains a double i (piikkiin). This orthographic pattern—root ending in i plus the illative suffix starting with i—illustrates a general phonological consequence of Finnish case endings on stems ending with certain vowels.

In usage, piikkiin appears in sentences that describe moving toward or into a piikki-bearing object or location, typically with verbs of motion or placement. It is a grammatical tool rather than a concept with a separate meaning beyond its lexical base piikki and its directional function in the illative.

Notes on scope: piikkiin is a standard inflected form within Finnish grammar and does not constitute a separate lexical entry beyond the illative variant of piikki. As with other illative forms, its primary function is to indicate direction toward something in physical or figurative contexts, depending on the surrounding verbs and nouns.

See also: Finnish illative case, Finnish grammar, piikki.