Meaning

1. pit (hole in the ground; sinking into something; bottom of something)
2. bottom (lower part of something)
3. cavity; fossa (cavity in the body of a human or animal)
4. (colloquial) blues; dumps (sad feeling)
5. depression (area lower than another)
6. (colloquial) grave
7. lower range (lower register of a singer)
8. (obsolete) area near a river's mouth
9. Hell
10. bottom (sin; badness; moral corruption)
11. trick; intrigue; ambush
12. riverbed
13. basement (covered earthen pit for storing crops)
14. moat; defensive ditch
15. mine (place where minerals and sand are extracted from the ground)
16. dugout (primitive human habitation)