安あん史しの乱らんMeanings1expression, nounAn Lushan Rebellion; An-Shi Rebellionhistorical termHistorical term referring to the rebellion in Tang China (755–763 CE) led by An Lushan and Shi Siming.安あん史しの乱らんは唐とう王おう朝ちょうの衰すい退たいを招まねいた。The An Lushan Rebellion led to the decline of the Tang dynasty.