Translation guide
The concept of space-time, primarily used in physics and philosophy. In Japanese, it is most commonly expressed with the compound 時空 (jikū).
The four-dimensional continuum combining three spatial dimensions and time, as in relativity.
The standard term for space-time in physics and general contexts. It is a compound of 時 (time) and 空 (space).
アインシュタインの理論では、重力は時空の歪みとして説明される。
In Einstein's theory, gravity is explained as a curvature of space-time.
A more explicit phrase meaning 'time and space'. Used when emphasizing the two components separately, or in less technical contexts.
この小説では、時間と空間を超えた愛が描かれている。
This novel depicts a love that transcends time and space.
A less common variant of 時空, sometimes used in academic or philosophical texts. It explicitly includes 間 (interval/space), but 時空 is more standard.
時空間の概念は物理学の基礎である。
The concept of space-time is fundamental to physics.