The phrase "study at mutual" can be expressed using various synonyms to convey the same meaning. For instance, "collaborative learning" highlights the mutual engagement between learners and emphasizes their collective pursuit of knowledge. "Cooperative study" conveys the same idea, indicating that learners are working together to achieve common goals. "Joint exploration" implies that learners are actively engaged in exploring a topic together, while "group study" emphasizes the collaborative nature of the effort. Ultimately, these synonyms all describe a mode of learning that is participatory, interactive, and characterized by shared responsibility for success. With these synonyms, identifying collaborative and cooperative approaches to learning become effortless.