noun
Refers to a long, narrow ditch, often used in military or construction contexts. Also appears in compound terms like トレンチコート (trench coat).
兵士たちはトレンチの中で夜を明かした。
The soldiers spent the night in the trench.
工事現場の周りに深いトレンチが掘られた。
A deep trench was dug around the construction site.