The Chinese word "周五" is formed by directly combining two characters: "周", which means "week", and "五", which means "five". This combination follows a straightforward numerical sequence where each day of the week is identified by its position, with Monday as the first day; thus, "周五" literally signifies "the fifth day of the week", representing Friday. This method of formation relies on the cultural convention of ordering days numerically within the weekly cycle, creating a clear and intuitive reference to a specific day without the need for additional descriptive elements.