A moral principle is a fundamental belief or guideline that guides one's ethical behavior and decision-making. It is crucial to the formation of character and a key aspect of a person's moral and ethical code. Other synonyms for the term include ethical principle, moral code, moral value, ethical value, moral standard, ethical standard, and ethical guideline. These words all refer to the principles and values that govern an individual's actions and decisions, which help shape their personality and beliefs. Understanding these words' meanings can help you become a person guided by the moral and ethical principles that lead to a fulfilling and rewarding life.