Moral Realism:The view that moral facts and properties exist independently of what any individual or culture believes, and that moral claims can be objectively true or false.
Moral Relativism:The belief that moral judgments are relative to a particular culture, individual, or historical context, and that there are no universal moral truths.
Moral Intuitionism: The theory that we can have immediate, non-inferential knowledge of moral facts or principles through moral intuition or moral sense.