(かい) (n) (1) (biological) kingdom; (2) erathem (rock layer corresponding to the era in which it was deposited); (3) partition of land; (suf) (4) the world of (some category) [EDICT]
(さかい(P);きょう(境)) (n) (1) (usu. さかい) border; boundary; (2) (usu. きょう) area; region; spot; space; environment; (3) (usu. きょう) psychological state; mental state; (4) (きょう only) {Buddh} cognitive object; something perceptible by the sense organs or mind; (P) [EDICT]
(こころ) (n) (1) mind; heart; spirit; (2) the meaning of a phrase (riddle, etc.); (P) [EDICT]
(しん) (n) (1) heart; mind; (n,suf) (2) (See 愛郷心) spirit; vitality; inner strength; (3) (See 二十八宿) Chinese "Heart" constellation (one of the 28 mansions); (4) (arch) friend; (P) [EDICT]
(xīn, ㄒㄧㄣ) heart; mind [CE-DICT]
中
(じゅう;ぢゅう) (suf) (1) through; throughout; in the course of; (2) all over or throughout (e.g. a place) [EDICT]
(ちゅう) (suf) (1) (See 並・1) medium; average; middle; (2) moderation; (3) (abbr) (See 中一,中学校) middle school; (4) (abbr) (See 中国・1) China; (n-suf) (5) (See 中・じゅう・2) in; out of (e.g. three out of ten people); (6) (See 話し中) during (a certain time when one did or is doing something); under (construction, etc.); while; (P) [EDICT]