pisteissä

Pisteissä is the inessive plural form of the Finnish noun piste, meaning "points" or "dots." In Finnish, piste can refer to a point in space, a dot on a plane, or a data point, among other senses. The inessive case marks location inside something, and the plural ending -issä denotes multiple points, yielding pisteissä, which translates roughly to "in the points" or "in the spots."

In Finnish grammar, the inessive is used to describe where an action occurs or where something is located. Pisteissä is formed from the stem piste- with the inessive plural suffix -issä, following vowel harmony rules. This form is common in scientific, mathematical, cartographic, and descriptive prose when discussing data points, coordinates, or locations that comprise a set.

Usage examples show how pisteissä functions in context. For instance, "Pisteissä kerätyt arvot ovat tilastollisesti merkitseviä" means "The values collected at the points are statistically significant." Another example: "Havainnot sijoittuvat pisteisiin A, B ja C kartalla" translates to "The observations are located at points A, B, and C on the map." The form can appear in both technical writing and narrative explanations that reference a group of spatial points or data points.

Pisteissä is one of several case forms of piste, with other cases expressing different relations (e.g., nominative pisteet, illative pisteeseen, or elative pisteestä). It is used when the intended meaning centers on location within multiple points. See also piste, Finnish noun cases, and Finnish grammar.