先月last month先週last week先生teacher先輩senior先日the other day先々月month before last先々週week before last先祖ancestor先端pointed end先頭head祖先ancestor先行preceding先先月month before last先先月month before last先先週week before last先先週week before last先代family predecessor先だってrecently先着first arrival先天的a priori優先preference
行 こう
銀行Bank飛行機aeroplane旅行travel急行speedy飛行場airport行動action実行practice通行passage発行issue (publications)飛行aviation流行fashionable孝行filial piety並行(going) side by side夜行walking around at night移行switching over to刊行publication慣行customary practice強行forcing決行doing (with resolve)現行present行為act行員bank clerk行進march進行advance徐行going slowly先行preceding走行running a wheeled vehicle (e.g. car)非行delinquency平行(going) side by side