A particular ethic is an idea or moral belief that influences the behaviour and attitudes of a group of people.
Ethics are moral beliefs and rules about right and wrong. When you use ethics with this meaning, it is a plural noun. You use a plural form of a verb with it.
Ethics is also the study of questions about what is morally right or wrong. When ethics has this meaning, it is an uncount noun. You use a singular form of a verb with it.
Ethic is never an adjective. The adjective that means 'relating to ethics' is ethical.
| Noun | 1. | ethic - 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" principle - a rule or standard especially of good behavior; "a man of principle"; "he will not violate his principles" Chartism - the principles of a body of 19th century English reformers who advocated better social and economic conditions for working people |
| 2. | ethic - a system of principles governing morality and acceptable conduct system of rules, system - a complex of methods or rules governing behavior; "they have to operate under a system they oppose"; "that language has a complex system for indicating gender" double standard - an ethical or moral code that applies more strictly to one group than to another |