wǔ dài
Five dynasties (in different contexts, from mythology through to Han and the interregnum between Han and Tang)
the five dynasties forming the interregnum between Tang and Song (936-947), namely: Later Liang 后梁, Later Tang 后唐, Later Jin 后晋, Later Han 后汉, Later Zhou 后周
Wǔ dài
Five Dynasties, period of history between the fall of the Tang dynasty (907) and the founding of the Song dynasty (960), when five would-be dynasties were established in quick succession in North China