Prepositionillä
Prepositionillä is a Finnish word that functions as an adessive case ending. The adessive case in Finnish is used to indicate location, possession, or means. When "prepositionillä" is attached to a noun or pronoun, it signifies that something is located on, at, or near that noun, or that the noun possesses something, or that something is done by means of the noun. For example, "pöydällä" means "on the table," "minulla on kirja" means "I have a book" (literally "at me is a book"), and "kirjoitan kynällä" means "I write with a pen."
The adessive case is formed by adding the suffix -lla or -llä to the noun stem, depending