The Vietnamese word "ăn diện" is a verb that means "to be stylish" or "to dress smartly." When someone "ăn diện," they put effort into their appearance, often wearing fashionable or well-coordinated clothing. This term is commonly used in casual conversations, especially when talking about fashion and personal style.
While "ăn diện" primarily refers to dressing stylishly, it can also imply a certain level of vanity or concern with outward appearances, depending on the context.