Facula is a scientific term used to describe bright patches on the surface of the sun. However, in common language, there are several synonyms that can be used in place of the word facula. Some of these synonyms include: bright spot, glare, gleam, flicker, and shimmer. They each describe the appearance and effect of the sun's bright spots in different ways, but all convey the same general idea. Additionally, depending on the context, other synonyms such as radiance, brilliance, and luminosity may be used to describe the sun's faculae as well. Regardless of the specific synonym chosen, the underlying message remains that the sun's faculae are bright and impressive to behold.