leave no stone unturned
あらゆる手段を尽くす
解説 Definition
目的を達成するためにあらゆる可能性を試し、全力を尽くすこと。
Leave no stone unturned means to do everything possible to find something or solve a problem. It suggests a very careful and complete effort, with nothing missed. This expression is common when talking about searches, investigations, or strong attempts to succeed.
覚え方のコツ Memory Tip
まず直訳の場面を映像で覚えると強いです。『石を一つも裏返さずに残さない』= 地面の石を片っ端からひっくり返して探す感じ。そこから『手がかりになりそうな所は全部当たる』→『あらゆる手段を尽くす』へつながります。investigation, search, effort と相性がよく、leave no stone unturned in the investigation のように使うことが多いです。単なる “try hard” より、『抜け漏れなく全部試す』ニュアンスまで含むと定着しやすいです。
Imagine turning over every single stone while searching for something. That strong image helps you remember the idea of missing nothing and trying every possible method. It often appears with `search`, `investigation`, or `effort`, so think of a thorough process, not just trying hard once.
例文
The detective left no stone unturned in the investigation.
その刑事は捜査であらゆる手段を尽くした。
We will leave no stone unturned to find a solution to this problem.
この問題の解決策を見つけるために、あらゆる手段を尽くします。
She left no stone unturned in her search for the perfect wedding venue.
彼女は完璧な結婚式場を探すためにあらゆる手段を尽くした。
leave no stone unturned の類義語・関連語
leave no stone unturned の語源・成り立ち Etymology
leave no stone unturned は「石を残さず裏返す」が原義。stone は古英語 stan、turn はラテン語 tornare 由来で、石を返して探す姿で「あらゆる手段を尽くす」になりました。関連語に return、overturn があり、turn の核は「向きを変える」です。
"Leave no stone unturned" is based on the literal image of turning over every stone while searching. "Stone" comes from Old English stan, while "turn" comes through French and Latin sources meaning "to rotate" or "change direction." The phrase developed from a physical act of careful searching into the wider idea of trying every possible method. Related words to "turn" include "return" and "overturn."
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