(けい) (n,n-suf) (1) system; lineage; group; (2) {math} corollary; (3) (geological) system (range of strata that correspond to a particular time period); (4) (taxonomical) series; (P) [EDICT]
(xì, ㄒㄧˋ) be; connection; relation; tie up; bind [CE-DICT]
(xì, ㄒㄧˋ) be; system; to tie; department; faculty [CE-DICT]
(xì, ㄒㄧˋ) connect; to tie [CE-DICT]
要
(かなめ) (n) (1) pivot; (2) vital point; cornerstone; keystone; (3) (See 要黐) Japanese photinia; (P) [EDICT]