The term faith-based is used to describe organizations that are religious in nature. It is generally accepted that "Faith-based" is used as a euphemism for "religious." Faith-based organizations range in size from the small church to huge well organized entities.

A faith-based organization is a community with members who all believe in the same religious concepts, or at least they did when it was founded.

The concept of "world religion" is historically based on a subjective perception of temporal or theological importance.
A general view evolved during the 19th century, that their are five "world religions" scholars categorized them as, Christianity, Judaism, Islam, Hinduism, and Buddhism. These remain the classic "world religions."

A religion is a social institution that includes a set of common beliefs and practices generally held by a group of people, often with principles of prayer, ritual, and religious law.