Seinämissä
Seinämissä is a Finnish word that translates to "in the walls" or "on the walls" in English. It is a locative case form of the word seinä, meaning "wall." The suffix -ssä indicates location within or on something. Therefore, seinämissä specifically denotes a position or presence associated with the interior or exterior surfaces of a wall.
This term can be used in various contexts. For example, one might say that something is "seinämissä"