There are several synonyms for the phrase "found the solution" that can be used in various contexts. One common phrase is "discovered the answer," which connotes a sense of uncovering something that was previously hidden or unknown. Alternatively, one could say they "figured out the solution," which implies a sense of problem-solving and critical thinking. The phrase "identified the solution" suggests a process of recognizing the correct option from among several possibilities. Lastly, one could say they "resolved the issue" or "solved the problem," which are straightforward ways of conveying that a solution has been found.