红茶 (hóng chá) literally means 'red tea' in Chinese, but it refers to what English speakers call 'black tea'. This naming difference arises from the color of the infused liquid in Chinese tea culture: the brewed tea appears reddish-orange, hence 红. The character 茶 means 'tea' and is the same in all tea-related terms like 绿茶 (lǜ chá, green tea) and 乌龙茶 (wū lóng chá, oolong tea). 红茶 is fully oxidized during processing, giving it a robust flavor, deeper color, and higher caffeine content than green or white teas.

This word is used broadly in daily life — in homes, teahouses, restaurants, and supermarkets — to refer to common black teas such as Keemun, Lapsang Souchong, or English Breakfast. It’s often served plain or with milk and sugar, especially in northern China and among older generations. Unlike the English term 'black tea', which emphasizes the dry leaf color, Chinese focuses on the liquor’s hue, making 红茶 a classic example of how cultural perspective shapes vocabulary.