1Construction, building, or repair work carried out on structures such as buildings, roads, or bridges; often seen in the sign 工事中 ("under construction").
駅前のビルは来月から建て替え工事に入る。
The building in front of the station will start reconstruction work next month.
道路工事のため、この先は通行止めです。
This road is closed ahead due to construction work.
台風の被害を受けた屋根の工事を頼んだ。
I asked for repair work on the roof that was damaged by the typhoon.
深夜まで工事の音がうるさかった。
The construction noise was loud until late at night.
このトンネルは十年かけて工事された。
This tunnel took ten years of construction to complete.