noun
Refers to a single hill or small elevation, often in geographical or descriptive contexts.
その丘陵の上に小さな神社がある。
There is a small shrine on top of that hill.
noun
rolling hills; foothills
Often used in the plural or as a collective term for an area of low, undulating hills, especially at the base of mountains.
このあたりはなだらかな丘陵地帯だ。
This area is a region of gentle rolling hills.