There are several synonyms for the phrase "learns through." One common alternative is "acquires knowledge via," which suggests the acquisition of knowledge through a particular channel or source. Another synonym is "absorbs information by," which evokes the idea of information being taken in and processed by the learner. "Gains understanding through" is another option, emphasizing the ultimate goal of learning as a broader comprehension or insight. Additionally, "develops expertise via" suggests a more focused and deliberate approach to learning, emphasizing the mastery of specific skills or disciplines. Ultimately, the choice of synonymous phrase depends on the context and tone of the overall message, as well as the precise meaning and connotations desired.