酒席 (jiǔ xí) literally combines 酒 (jiǔ), meaning 'alcoholic drink' or 'wine', and 席 (xí), meaning 'mat', 'seat', or 'banquet'. Historically, people sat on mats during formal meals, so 席 came to signify a formal dining occasion. Together, 酒席 refers specifically to a traditional Chinese banquet—often celebratory, elaborate, and centered around multiple courses and toasting with alcohol. It is commonly used for weddings, birthdays, business dinners, or holiday gatherings.

Unlike the more neutral term 宴会 (yàn huì), 酒席 carries cultural connotations of hospitality, ritual, and social obligation. It implies not just eating, but sharing food and drink in a structured, communal setting with hierarchical seating and prescribed etiquette. The word appears frequently in both spoken and written Chinese, especially when describing important life events or regional customs.