穴

also 孔

1. noun hole; opening; orifice; perforation
2. pit; hollow; cavity; hole (e.g. in the ground)
3. burrow; den; lair; holt; hole
4. deficit; shortage; (financial) hole; loss
5. gap (left by a missing employee, team member, etc.); vacancy; opening
6. flaw; fault; defect; weak point; hole (in a theory, plan, etc.); loophole
7. good place not many people know about; well-kept secret
8. upset victory (with a large payoff); long shot; dark horse
9. theatre jargon (partitioned) box (type of floor seating in a traditional Japanese theatre)
10. archaic hiding place; hideout

けつ also 尻

1. noun, usually in kana, colloquial ass; arse; buttocks
2. usually in kana, colloquial rear; end
3. acupuncture point
4. counter hole; notch

めど also 針孔

1. noun eye of a needle
2. dialectal hole