also: てへん · てっぺい
noun
General word for the highest point of something, such as a mountain, building, or hierarchy.
山のてっぺんまで登った。
We climbed to the top of the mountain.
会社のてっぺんに立つのは大変だ。
It's tough to be at the top of a company.
noun
Only with reading てっぺん
Slang for midnight, often in the phrase てっぺんを回る (past midnight).
てっぺん回るまで飲んでた。
We were drinking until past midnight.
noun
Refers specifically to the top of the head or helmet; 頂辺 is sometimes used for this sense.
頭のてっぺんがかゆい。
The top of my head itches.