sormenkynsissä

Sormenkynsissä is a Finnish term that translates to "under one's fingernails" or "on the tips of one's fingers" in English. It is often used figuratively to describe a situation where someone has a strong grasp of something, possesses detailed knowledge, or is exceptionally skilled in a particular area. The phrase implies a deep understanding and mastery, as if the subject matter is so ingrained it can be found literally under one's fingernails.

The idiom can also refer to having a specific task or problem persistently on one's mind, to the point of obsession or constant contemplation. In this context, it suggests that the issue is always present, demanding attention and thought. For example, someone might say a project is "sormenkynsissä" if they are constantly thinking about its details and potential solutions.

The literal image evoked by the phrase highlights the idea of something being intimately connected with a person. Just as dirt or debris can get lodged under fingernails, a concept or concern can become deeply embedded in one's thoughts and awareness when it is "sormenkynsissä." This Finnish expression is a vivid way to convey a state of intense focus, profound knowledge, or persistent preoccupation.