There are numerous terms in the English language that we, as a society, use interchangeably. Assault/battery, tall/big and rich/successful just to name a few. The argument can be made that each of these terms are synonymous with their counterpart. But, technically speaking, they all hold quite different meanings. The idea behind morals and ethics is the same impasse.
distinguish your personal differing definitions between morals and ethics. Consider answering some of the following as a part of your response: What is each? How is each determined? How does the law play into each definition? What about societal norms