Yin and yang Da Cidian") enter "yangyin" *陽陰. While "yang" and "yin" can occur together in context, "yangyin" is not synonymous with "yinyang". The linguistic term "irreversible binomial" refers to a collocation of two words A-B that cannot be idiomatically reversed as B-A, for example, English "cat and mouse" (not *"mouse and cat") and "friend or foe" (not *"foe or friend"). Similarly, the usual pattern among Chinese binomial compounds is for positive A and negative B, where the A word is dominant or privileged over B, for example, "tiandi" 天地 "heaven and earth" and "nannü" 男女 "men and women". "Yinyang" meaning "dark and
Yang Yin Xiaoming, Northern Wei was suffering greatly from agrarian rebellions, and Yang Jing was commissioned with an army as the governor of Ding Province, roughly modern Baoding, Hebei). Yang Yin accompanied his father to Ding Province, and on account of his contribution to his father's campaign, was created the Baron of Weichang. However, in spring 528, Ding Province fell to the rebel general Du Luozhou, and Yang Jing's household was imprisoned by Du. Soon thereafter, Du was defeated by another rebel general, Ge Rong. Ge wanted to marry one of his daughters to Yang Yin and make him an official, but