河岸

1. Origins, structure, and basic meaning

• Structure: 河岸 is read as かがん and is a noun for the riverbank, the land running along and meeting a river.
• Basic usage: A location along the river appears in 河岸に沿う, while collapse after rain appears in 河岸の一部が崩れる.

2. Common pitfalls and similar expressions

• Land beside the river
  • It denotes the land at the edge of a river, not the river water itself.
• Difference from 川岸
  • 川岸 is also an everyday word for a riverbank, while 河岸 readily suits more formal geographical, facility, or management contexts.