noun, noun or participle which takes 'suru'
directly above; going straight up
Refers to a position or movement directly upward, often in a vertical line. Can be used as a noun or with する to mean 'to go straight up'.
ヘリコプターが直上に上昇した。
The helicopter ascended straight up.
そのビルの直上を飛行機が通過した。
An airplane passed directly above the building.