The term "meta" means after or beyond, and, consequently, the notion of metaethics involves a removed, or bird's eye view of the entire project of ethics. We may define metaethics as the study of the origin and meaning of ethical concepts. When compared to normative ethics and applied ethics, the field of metaethics is the least precisely defined area of moral philosophy. Three issues, though, are prominent: (1) metaphysical issues concerning whether morality exists independently of humans; (2) psychological issues concerning what motivates us to be moral; and (3) linguistic issues concerning the meaning of key ethical terms.