(zhī, ㄓ) classifier for birds and certain animals, one of a pair, some utensils, vessels etc [CE-DICT]
先
(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]
试
(shì, ㄕˋ) to test; to try; experiment; examination; test [CE-DICT]
探
(tàn, ㄊㄢˋ) to explore; to search out; to scout; to visit; to stretch forward [CE-DICT]