leave no stone unturned, to

leave no stone unturned

1. To look for something in every possible place. We left no stone unturned looking for that earring, but we still couldn't find it. I'm thinking it got thrown out. Police vowed to leave no stone unturned trying to track down the fugitive.
2. To do all that one can or use every available resource to complete a task. I left no stone unturned when I was researching my thesis topic. I think I checked out every book on it that the library had!
See also: leave, no, stone, unturned
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.

leave no stone unturned

Fig. to search in all possible places. (As if one might search under every rock.) Don't worry. We'll find your stolen car. We'll leave no stone unturned. In searching for a nice place to live, we left no stone unturned.
See also: leave, no, stone, unturned
McGraw-Hill Dictionary of American Idioms and Phrasal Verbs. © 2002 by The McGraw-Hill Companies, Inc.

leave no stone unturned

Make every possible effort, use every possible source or resource. For example, To raise ten thousand dollars to keep the shelter open, we must leave no stone unturned. This expression alludes to an ancient Greek legend about a general who buried a large treasure in his tent when he was defeated in battle. Those seeking the treasure consulted the Oracle of Delphi, who advised them to move every stone. The present form dates from the mid-1500s.
See also: leave, no, stone, unturned
The American Heritage® Dictionary of Idioms by Christine Ammer. Copyright © 2003, 1997 by The Christine Ammer 1992 Trust. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

leave no stone unturned

COMMON If you leave no stone unturned in your efforts to find something or achieve something, you consider or try every possible way of doing it. In the difficult weeks ahead, we'll leave no stone unturned in our search for a peaceful solution to the crisis. The New Zealand police minister promised that no stone would be left unturned in the hunt for the killer.
See also: leave, no, stone, unturned
Collins COBUILD Idioms Dictionary, 3rd ed. © HarperCollins Publishers 2012

leave no stone unturned

try every possible course of action in order to achieve something.
See also: leave, no, stone, unturned
Farlex Partner Idioms Dictionary © Farlex 2017

leave no stone unˈturned

try everything possible to find or obtain something: The police left no stone unturned in their efforts to find the little girl.
See also: leave, no, stone, unturned
Farlex Partner Idioms Dictionary © Farlex 2017

leave no stone unturned

To make every possible effort.
See also: leave, no, stone, unturned
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

leave no stone unturned, to

To spare no trouble or expense; to make every possible effort. This term actually dates back to a Greek legend recounted by Euripides. One of Xerxes’s generals, Mardonius, was said to have abandoned a great treasure in his tent when he was defeated in the battle of Plataea (477 b.c.). Polycrates of Thebes looked for the treasure but could not find it, and turned to the Oracle of Delphi for advice. The oracle replied, “Move every stone,” which Erasmus later translated as, “Leave no stone unturned.” Of the many repetitions over the centuries, one of the most amusing is Ogden Nash’s, “When I throw rocks at seabirds, I leave no tern unstoned.”
See also: leave, no, stone
The Dictionary of Clichés by Christine Ammer Copyright © 2013 by Christine Ammer
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