summit; top of a mountain
Refers specifically to the highest point of a mountain. Common in both literal and figurative contexts.
The view from the summit of Mt. Fuji is amazing.
登山隊はついに山頂に到達した。
The climbing party finally reached the summit.
I finally stood at the summit.
The climbers kept walking, aiming for the summit.
We arrived at the summit at three in the afternoon.
The view from the summit was breathtaking.
麓 is the foot of a mountain, while 山頂 is its summit or peak.
山頂 means the summit of a mountain, the geographical and figurative opposite of 谷底, the bottom of a valley.