The term "canon" has several meanings, depending on its context.
In a general sense, it refers to an established rule or principle that serves as a guide for conduct or practice. For example, in literature, a canon is a collection of works considered to be the best representations of a particular genre, culture, or time period. In music, a canon is a specific type of composition where one voice sings a melody while another voice sings the same melody but with a different rhythm or interval patterns.
In a more specific sense, "canon" can refer to an authoritative list of books accepted as genuine and inspired by God, such as in Christianity, Judaism, and Islam. In these religions, the term refers to the body of sacred texts that serve as the basis for religious beliefs and practices.
In a broader sense, "canon" can also refer to a group or collection of works considered to be representative of a particular author or artist's best work. For example, in film or art, a canon is a selection of works by an individual artist that are considered their most important or influential pieces.