There are several synonyms for the phrase "bring to the test." One of the most common is "put to the test," which refers to evaluating someone's abilities, skills, or knowledge in a given field. Another synonym is "test the limits," which implies pushing someone or something to its maximum potential. "Challenge" is another synonym that can be used to suggest testing someone's skills or abilities. Additionally, "assess" and "evaluate" are similar words that can be used to determine the effectiveness or success of a person or thing. Finally, "trial" can also be used to suggest testing or evaluating something through a series of experiments or trials.