The phrase "being trained" refers to the process of acquiring knowledge or skills through instruction or practice. Synonyms for this phrase include "learning," "acquiring," "developing," "gaining," and "cultivating." Other related terms include "instructed," "coached," "mentored," "educated," and "tutored." Each of these words suggests a slightly different aspect of the process of learning and skill-building, and may be more or less appropriate depending on the context. For example, "mentored" implies a closer, more personal relationship between the teacher and student, while "tutored" implies a more one-on-one, individualized approach. Ultimately, the choice of words to describe the process of being trained will depend on the specific situation and the goals of the learner.