‘Wáng hòu’ literally combines 王 (wáng, 'king') and 后 (hòu, 'empress' or 'queen'), meaning specifically the wife of a king — that is, a queen consort. Unlike 女王 (nǚwáng, 'queen regnant'), who rules in her own right, a 王后 holds her title solely through marriage and does not possess sovereign authority. This term is used historically and formally, especially when referring to royal families in ancient Chinese dynasties or in historical dramas and literature.

The character 后 originally meant 'ruler' in oracle bone inscriptions but later evolved to denote the principal wife of a monarch. In modern usage, 王后 appears mainly in historical, literary, or ceremonial contexts — not in contemporary political discourse, since China has no monarchy. It’s also occasionally used metaphorically or playfully (e.g., 'chess queen'), though that sense is rare and context-dependent.