Literal usage:
* We hiked up a hill to get a better view of the valley.
* The children rolled down the grassy hill in delight.
* The town is nestled at the foot of a steep hill.
Figurative usage:
* He faced a hill of challenges in his career.
* She had to climb a hill to reach her goal.
* After the surgery, he was slowly but surely climbing the hill to recovery.
Idioms:
* "To be on top of the hill" means to be in a position of power or success.
* "To go down the hill" means to decline or deteriorate.
Choose the sentence that best fits the context you are writing about!