morality

Morality is the ability to tell the difference between things that are just and things that are evil.

Example: Without morality, everybody would be killing each other constantly.

A morality is a set of rules and beliefs that say what actions are appropriate for people in a society to do.

Your morality is your own personal set of beliefs for what is okay for you and other people to do.

Example: In my morality, it is always wrong to kill someone, no matter what.

Morality is the field of moral philosophy.