(せん) (adj-no,n) (1) former; previous; old; (n) (2) first move (in go, shogi, etc.); opening move [EDICT]
(さき) (n,adj-no,n-suf,pref) (1) previous; prior; former; some time ago; preceding; (2) point (e.g. pencil); tip; end; nozzle; (3) head (of a line); front; (4) ahead; the other side; (5) the future; hereafter; (6) destination; (7) the other party; (P) [EDICT]
(xiān, ㄒㄧㄢ) early; prior; former; in advance; first [CE-DICT]
前
(ぜん) (n-pref) (1) (See 前・まえ) the last (i.e. immediately preceding) (e.g. "the last mayor"); previous; one-time; former; (2) (before the name of an era) pre- (e.g. "premodern"); (adj-no,n) (3) before; earlier; (P) [EDICT]
(まえ) (n-adv,n-t,suf) (1) (See 前・ぜん) ago; before (some event); previously; (minutes) to (the hour); (2) in front (of); before (e.g. the house); (3) head (of a line); front (e.g. of a bus); fore part; (4) in the presence of; (5) (See 人前・にんまえ) helping; portion; (6) privates; private parts; (P) [EDICT]
(qián, ㄑㄧㄢˊ) before; in front; ago; former; previous; earlier; front [CE-DICT]