leave no stone unturned

== English == === Pronunciation === === Verb === leave no stone unturned (third-person singular simple present leaves no stone unturned, present participle leaving no stone unturned, simple past and past participle left no stone unturned) (idiomatic) To search or investigate thoroughly. For more quotations using this term, see Citations:leave no stone unturned. (figuratively) To perform a task carefully and thoroughly, not missing any step. For more quotations using this term, see Citations:leave no stone unturned. ==== Translations ==== ==== See also ==== spare no effort