Tuumaosa
Tuumaosa is a Finnish term that translates to "core part" or "central piece" in English. It is commonly used in a variety of contexts, both literal and metaphorical, to denote the essential or fundamental element of something.
In a physical sense, tuumaosa can refer to the nucleus of an atom, the central part of
Metaphorically, tuumaosa signifies the heart or essence of an idea, a project, or even a person's character.