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A practice session or test designed to identify and correct possible problems. Before going for a job interview, I always make a dry run to the company ahead of time to make sure I won't get lost. The theater group did a dry run of the play to iron out any technical problems before opening night.
Fig. an attempt; a practice or rehearsal. We had better have a dry run for the official ceremony tomorrow. The children will need another dry run before their procession in the pageant.
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]
a dry runor
a test run
A dry run or a test run is something that you do to practise before you do it at a more important time. We'll have a dry run at getting you in and out of the clothes quickly. More than 10,000 people were expected and council chiefs said it would be a dry run for the Olympic celebrations.