"Khun" is a Thai honorific title used to show respect, often translated as "Mr." or "Ms." in English. It is commonly used before a person's first name, regardless of their gender, and is a way to acknowledge someone's status or relationship. In Thai culture, using "Khun" reflects politeness and social etiquette. It is similar to other honorifics found in various cultures, such as san in Japanese or senor in Spanish, emphasizing the importance of respect in communication.