There is no clear cut answer to this. Different thinkers have slightly different perspectives on the similarities and differences between the two terms. In general, I see “morality” as being akin to matters-of-fact, and it is generally used in this sense. For instance “the sky is blue” and “murder is wrong” are similar types of statements. Ethics on the other hand are the applications of these ‘morals’. They tend to be rules and guidelines associated with maintaining ‘morals’. For me ethics are about how we OUGHT to act, while morals are the absolute metrics that guide these ethics and tell us what we’re working towards.