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dry run

a rehearsal or practice exercise.
Military. practice in firing arms without using live ammunition.
Origin of dry run
1940-45, Americanism
Related forms
dry-run, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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Examples from the Web for dry run
Contemporary Examples
Historical Examples
  • Unfortunately, however, for the inhabitants the dry run has frequently become very wet.

  • Then the truck was past, en route to the mesa for the day's dry run.

    The Scarlet Lake Mystery Harold Leland Goodwin
  • Would you describe for the record what is meant in marksmanship terms by a dry run?

    Warren Commission (11 of 26): Hearings Vol. XI (of 15) The President's Commission on the Assassination of President Kennedy
  • It was an unpainted square cottage and stood bare on the sod at the edge of dry run ravine.

  • After the eggs have been in the sun all day remove indoors and if dry run through a cleaned coffee mill.

    Touring Afoot Claude Powell Fordyce
British Dictionary definitions for dry run

dry run

(military) practice in weapon firing, a drill, or a manoeuvre without using live ammunition
(informal) a trial or practice, esp in simulated conditions; rehearsal
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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Slang definitions & phrases for dry run

dry run

noun phrase

A tryout, practice version, or rehearsal of something planned: One more dry run, then tomorrow we do it (1940s+)


: so the medical staff could ''dry run'' their equipment

The Dictionary of American Slang, Fourth Edition by Barbara Ann Kipfer, PhD. and Robert L. Chapman, Ph.D.
Copyright (C) 2007 by HarperCollins Publishers.
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dry run in Technology

To execute a program by hand, writing values of variables and other run-time data on paper, in order to check its operation and control flow or to track down a bug (as part of debugging). A dry run is an extreme form of desk check or code review and is practical only for fairly simple programs, small amounts of data and simple external interfaces. It was often performed off-line using a hardcopy of the source code.
Dry runs were common practice in the days when access to computers was limited but the availability of screen editors and fast compilers makes debugging by printf a more productive method in most cases. Sophisticated debuggers that allow you to get the computer to step through your source code line by line and show values of variables make even this unnecessary.

The Free On-line Dictionary of Computing, © Denis Howe 2010
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Idioms and Phrases with dry run

dry run

A trial exercise or rehearsal, as in Regard this as a dry run for tonight's ceremony. This term, using dry in the sense of “unproductive,” was at first employed mainly in the military for simulated bombings in which no bombs were dropped. [ c. 1940 ]
The American Heritage® Idioms Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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