Crown light is a term used to refer to a type of skylight that sits on top of a flat or low-pitched roof. While crown light is the most commonly used term for this type of skylight, there are several synonyms that can be used interchangeably. These include lantern roof, lantern light, ridge light, roof lantern, and pyramid skylight. Each of these terms describes the same type of skylight and can be used depending on personal preference or the specific context of the conversation. Regardless of the synonym used, a crown light or lantern roof is a valuable addition to any building, providing ample natural light and ventilation.