Posted in Uncategorized 英語「underpinning」の意味・使い方・読み方 | Weblio英和辞書 November 6, 2025 名詞 underpinning (plural underpinnings) A support or foundation, especially as a structure of masonry that supports a wall. This house ‘s underpinning is not up to standard. https://ejje.weblio.jp/content/underpinning