Noun

• S: (n) ethic, moral principle, value-system, value orientation (the principles of right and wrong that are accepted by an individual or a social group) "the Puritan ethic"; "a person with old-fashioned values"
• S: (n) ethic, ethical code (a system of principles governing morality and acceptable conduct)
• S: (n) ethical motive, ethics, morals, morality (motivation based on ideas of right and wrong)
• S: (n) ethics, moral philosophy (the philosophical study of moral values and rules)