There are many synonyms for the phrase "study at moral," which generally means to examine ethics or principles. One possible synonym is "delve into morality," which suggests a deep exploration or investigation of moral concepts. Another option could be "scrutinize ethics," which similarly conveys a thorough examination of ethical principles. Other possible synonyms include "analyse values," "explore virtues," or "investigate principles." Whatever the specific wording, the goal of studying morality is typically to gain a deeper understanding of what is right and wrong, and how we should behave in various situations.