(kě, ㄎㄜˇ) can; may; able to; to approve; to permit; certain(ly); to suit; (particle used for emphasis) [CE-DICT]
口
(く;こう) (n) (1) (く only) {Buddh} mouth; speech; (suf,ctr) (2) (usu. こう) counter for people or implements [EDICT]
(くち) (n) (1) mouth; (2) opening; hole; gap; orifice; (3) mouth (of a bottle); spout; nozzle; mouthpiece; (4) gate; door; entrance; exit; (5) (See 口を利く・1) speaking; speech; talk (i.e. gossip); (6) (See 口に合う) taste; palate; (7) mouth (to feed); (8) opening (i.e. vacancy); available position; (9) (See 口がかかる) invitation; summons; (10) kind; sort; type; (11) opening (i.e. beginning); (suf,ctr) (12) counter for mouthfuls, shares (of money), and swords; (P) [EDICT]
(kǒu, ㄎㄡˇ) mouth; (classifier for things with mouths such as people, domestic animals, cannons, wells etc) [CE-DICT]
非
(ひ) (n) (1) fault; error; mistake; (2) going poorly; being disadvantageous; being unfavorable; (pref) (3) un-; non-; an-; (P) [EDICT]
(fēi, ㄈㄟ) non-; not-; un-; abbr. for Africa 非洲; wrong; evil-doing; insist on; simply must [CE-DICT]
常
(えいきゅう(永久)(P);とこしえ(永久);とわ) (adj-na,n,adj-no) (1) (とわ tends to be more abstract) eternity; perpetuity; immortality; (2) (えいきゅう only) Eikyuu era (1113.7.13-1118.4.3); (P) [EDICT]