n.
1.
Cavity, hollow.
2.
Indentation, dent, dint, depression, dimple.
3.
Excavation, hole, cavity, hollow, well.
4.
Coal-mine, coal-~.
5.
Vat.
6.
Gulf, abyss.
7.
[With The prefixed.] Hell, pandemonium, bottomless ~.
8.
[With The prefixed.] Grave, death.
9.
Snare, trap, ~fall.
10.
Parquet, parterre.