dry run

A "dry run" refers to a rehearsal or practice session that is conducted without actually performing or executing the target activity. It is a simulated run-through of a process or procedure to test and evaluate its effectiveness or to identify any potential issues or errors before the actual event or task takes place. Dry runs are commonly used in various fields, including software testing, military exercises, event planning, and public speaking, among others. The purpose is to gain familiarity, assess performance, and make necessary adjustments for a smoother and more successful outcome when the real event or task occurs.