The word 明亮 is formed through a common Chinese lexical process called compound formation, where two independent, semantically similar characters are combined to create a new, reinforced meaning. The first character, 明 (míng), primarily means "bright" or "clear", while the second, 亮 (liàng), means "light" or "shining". When paired, they create a synonymous compound where each element reinforces and nuances the other, resulting in a term that conveys a heightened sense of "bright and clear", applicable to both literal light (e.g., a bright room) and metaphorical clarity (e.g., bright prospects).