The police will leave no stone unturned to find the missing keys.
leave no stone unturned
idiom B1
To search or investigate thoroughly.
Origin
disputed originFrom a Greek oracle story: after the battle of Plataea (479 BC), the Delphic oracle advised searching for the Persian general Mardonius' buried treasure by 'moving every stone'; quoted by Euripides.
The detective promised the family that he would leave no stone unturned during his investigation into the accident.
Determined to solve the mystery, the researchers left no stone unturned, examining every historical document and piece of evidence they could find.
- 01
carved in stone
Unchangeable.
- 02
cast the first stone
To act self-righteously in accusing another person, believing oneself to be blameless.
- 03
eat and leave no crumbs
Synonym of eat (“to be very good at something; to rule; to rock”).
- 04
French leave
A departure taken quietly and unnoticed, without asking for permission or informing anyone.
- 05
get blood out of a stone
To do something difficult, frustrating, or pointless.
- 06
kill two birds with one stone
To solve two problems with one single action.
- 07
leave a sour taste in one's mouth
To give one an unpleasant feeling or memory.
- 08
leave at the door
To dispense with something for now; to forget about it situationally, or omit or discard it in a given place or instance.