A natural waterway that collects and flows along a depression in the earth's surface, eventually emptying into seas or lakes.
A slender body of water formed by precipitation or spring water, following the contours of the land.
A geographical feature characterized by moving water, often referred to collectively with related expressions such as small rivers or valleys.
Example:
この川はあの川の３倍長い。
A massive collection of stars, nebulae, and other celestial bodies, forming a disk-like structure in space, typically containing billions of stars and extending across vast distances.
A luminous band of light visible in the night sky, traditionally described as a silvery river, resulting from numerous stars closely clustered together.
Any galaxy beyond our own, characterized by its expansive structure and various forms, including spiral, barred spiral, and elliptical shapes, essential components of the universe.
Example:
宇宙にはたくさんの銀河がある。
A significant waterway characterized by its substantial size and flow, often serving as a major geographic feature in a region.
A term used in literary contexts to describe a long and grand narrative work, conveying expansive themes and complex character developments within a rich socio-historical backdrop.
A constructed waterway created by excavating land, designed for navigation, irrigation, drainage, or supply of water, specifically for the purpose of facilitating the movement of ships.
An artificial channel carved into the earth, primarily utilized for maritime transportation and other water management functions, serving as a means to connect different bodies of water.
A man-made conduit for water flow, built to enhance shipping routes or manage water resources, reflecting engineering efforts to optimize the movement of vessels.
A water passage designed and shaped by human intervention to enable the travel of boats and ships, as well as for agricultural and urban water management needs.
Example:
この船は大きすぎて運河を通れない。
A general term referring to various types and sizes of rivers, including their associated characteristics and behaviors, such as flooding or seasonal changes.
The officially designated riverbeds and riverbanks as defined by specific legal frameworks, emphasizing their regulated nature and importance in terms of land use and management.
An encompassing term for all rivers, highlighting their aggregate impact on the landscape, ecosystems, and human activities, often used in discussions about natural disasters and environmental studies.
Example:
河川は豪雨で氾濫しました。