Moral philosophy, the branch of philosophy which studies the grounds and nature of rightness, wrongness, good, and evil.
A set of personal guiding principles for conduct or a general notion of how to behave, whether respectable or not.
A set of social rules, customs, traditions, beliefs, or practices which specify proper, acceptable forms of conduct.
A particular theory concerning the grounds and nature of rightness, wrongness, good, and evil.
A morality play.
Recognition of the distinction between good and evil or between right and wrong; respect for and obedience to the rules of right conduct; the mental disposition or characteristic of behaving in a manner intended to produce morally good results.
Integrity, especially of the quality of having strong moral principles; decency and honesty.