There are various synonyms for the phrase "make a trial run". Some of the common ones include "give it a test", "try out", "experiment", "pilot", "sample", "taste", "dip the toe", "test the waters", "run a check", "take for a spin", "run a dry run", "see how it goes", "put to the test", "give it a go" and "probe". All of these phrases mean to test or check something out before fully committing to it. Whether it's a new product or service, a business strategy, or a personal decision, making a trial run can provide valuable insights and help in making informed decisions for the future.