Ilmiöissä

Ilmiöissä is the inessive plural form of the Finnish noun ilmiö, meaning phenomenon. The form literally translates to “in phenomena” and is used when referring to multiple phenomena as the context or location of observation, description, or discussion. In Finnish grammar, the inessive plural is marked with the ending -issä, so ilmiöissä corresponds to in the phenomena.

The noun ilmiö denotes an observable event or occurrence in nature, science, or everyday life. Its plural nominative is ilmiöt, and its genitive is ilmiöiden; the inessive plural ilmiöissä thus fits within the broader system of case endings used to indicate location or context.

Usage and style: ilmiöissä appears most often in scientific, academic, or descriptive Finnish. It is commonly paired with verbs of observation, analysis, or description, and it can refer to phenomena across disciplines, such as natural phenomena, social phenomena, or physical phenomena.

Examples:

- Fysiikan ilmiöissä voidaan havaita valon heijastusta. (In physics phenomena, one can observe the reflection of light.)

- Tutkimuksessa ilmiöissä esiintyi sekä toistuvuutta että vaihtelua. (In the phenomena, there appeared both recurrence and variation.)

- Ilmiöissä voidaan löytää yhteisiä piirteitä eri ilmiöiden välillä. (In the phenomena, common features can be found between different phenomena.)

Ilmiöissä provides a concise way to discuss multiple phenomena collectively, and it is part of standard Finnish usage in descriptive and explanatory texts.