Mountaintop (noun)

1. The summit of a mountain.
2. The highest point of a mountain range.

Origin:

A combination of the words "mountain" and "top".

Examples:

1. The climbers finally reached the mountaintop after a long and arduous ascent.
2. The mountaintop offered a panoramic view of the surrounding area.
3. The mountaintop was covered in snow and ice.
4. The mountaintop was a popular destination for hikers and climbers.
5. He proposed to her on the mountaintop, with the beautiful view as a backdrop.