Dummy run is a term that is often used in various domains and refers to a trial or test run conducted to identify potential problems and issues. However, if you are writing an article or a report, it is recommended to avoid using the same phrase repetitively. Therefore, here are some synonym options that can be used instead of "dummy run". These include trial run, practice session, dress rehearsal, dry run, test drive, pilot testing, or simulation. Utilizing these synonyms can help improve the overall quality of your document and keep your readers engaged.