aikaavaruuden
Aikaavaruuden is the genitive form of the Finnish term aika-avaruus, meaning the time-space continuum. The compound combines "aika" (time) and "avaruus" (space), and Finnish uses the hyphenated form aika-avaruus to express this concept. In Finnish-language texts, aika-avaruus is the standard term for the four-dimensional fabric in which events occur.
In physics, the time-space continuum describes an arena with four dimensions: one time coordinate and three
Beyond physics, aikaavaruuden concepts influence philosophy and cosmology, touching on the nature of time, the possibility
Etymology notes: the term is formed from Finnish words for time and space; the genitive singular aikaavaruuden