a rehearsal or practice exercise.
Military. practice in firing arms without using live ammunition.
Origin of dry run
An Americanism dating back to 1940–45Related formsdry-run, adjective
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
Examples from the Web for dry run
Historical Examples of dry run
British Dictionary definitions for 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
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Idioms and Phrases with 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
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