公元前

BCE (before the Common Era) / BC (before Christ)

public / collectively owned / common / international (e.g. high seas, metric system, calendar) / make public / fair / just / Duke, highest of five orders of nobility 五等爵位[wu3 deng3 jue2 wei4] / honorable (gentlemen) / father-in-law / male (animal)

CE (Common Era) / Christian Era / AD (Anno Domini)

surname Yuan / the Yuan or Mongol dynasty (1279-1368)

currency unit (esp. Chinese yuan) / first / original / primary / fundamental / constituent / part / era (of a reign) / meta- (prefix) / (math.) argument / variable / (Tw) (geology) eon

front / forward / ahead / first / top (followed by a number) / future / ago / before / BC (e.g. 前293年) / former / formerly