underpin
🇺🇸
/ˌʌndərˈpɪn/
🇬🇧
/ˌʌndəˈpɪn/
To provide a strong foundation or support for something.
The strong foundation underpins the stability of the building.
強固な基礎が建物の安定性を支える。
To strengthen a wall by adding support underneath it.
The engineers underpinned the old wall with steel beams to prevent it from collapsing.
エンジニアは、崩壊を防ぐために古い壁に鉄骨を付け加えました。