丘

1. Origins, structure, and basic meaning

• Structure: The spelling is 丘, read as おか. It is a noun for a relatively low, gently raised area of land above its surroundings.
• Basic usage: Looking out from the top of a hill appears in 丘の上から見渡す, while crossing a green hill appears in 緑の丘を越える.

2. Common pitfalls and similar expressions

• Difference from 山
  • Although the boundary is not absolute, it generally denotes lower and gentler raised land than a mountain.