口

1. noun mouth
2. opening; hole; gap; orifice
3. mouth (of a bottle); spout; nozzle; mouthpiece
4. gate; door; entrance; exit
5. speaking; speech; talk (i.e. gossip)
6. taste; palate
7. mouth (to feed)
8. opening (i.e. vacancy); available position
9. invitation; summons
10. kind; sort; type
11. opening (i.e. beginning)
12. suffix, counter counter for mouthfuls, shares (of money) and stove burners
13. often read ふり in museum, etc. contexts counter for swords, blades, etc.

く · こう

1. noun, Buddhism mouth; speech
2. suffix, counter, usu. こう counter for people or implements