a system of moral theories, principles, and values, typically relating to a particular group or manner of behavior;
e.g. They admired her work ethic, since she always tried to do her best at any task.
(noun)
the moral aspects or issues of something, especially relating to its rightness, or the area of study relating to moral obligations and how right/good or wrong/bad things are (used as "ethics");
e.g. We discussed the ethics of using such scientific techniques on humans.
(noun)
a philosophy or principle that guides one's actions, often relating to their awareness of something being morally important;
e.g. He stayed true to his ethic of never voluntarily harming people.