"남자" is the Korean word for "man." It refers to an adult male human being, typically characterized by biological traits such as XY chromosomes and the ability to produce sperm. In many cultures, including Korean culture, men often take on specific social roles and responsibilities, which can vary widely depending on societal norms. In terms of gender identity, "남자" can also encompass individuals who identify as male, regardless of their biological sex. This term is used in various contexts, including discussions about gender roles, family structures, and societal expectations, reflecting the complexities of masculinity in modern society.