When you are "in charge," you are responsible for something or someone. As a leader, you may be called upon to manage a team, direct a project, or oversee a task. But what do you call this position or role without using the same words? There are several synonyms for the phrase "in charge." You could say you are "leading," "managing," "directing," "overseeing," "supervising," "running," "commanding," "heading up," "taking charge of," "being responsible for," or "holding the reins." Whatever term you choose, remember that being in charge means taking charge, making decisions, and leading by example.